Researchers studying differences in treatment initiation for chronic hepatitis B (CHB) among a large, multiracial cohort in North America did not find evidence of disparities by race or socioeconomic status.

Instead, they observed a similar gap across races between the number of people eligible for treatment and those receiving it.

That gap suggests that treatment guidelines need to be simplified and that efforts to increase hepatitis B virus (HBV) awareness and train more clinicians are needed to achieve the World Health Organization’s goal of eliminating HBV by 2030, the researchers write.

The Hepatitis B Research Network study was published online in JAMA Network Open.

The prevalence of CHB in the United States is estimated at 2.4 million. It disproportionately affects persons of Asian or African descent, the investigators note. Their study examined whether treatment initiation and outcomes differ between African American and Black, Asian, and White participants, as well as between African American and Black participants born in North America and East or West Africa.

The research involved 1,550 adult patients: 1,157 Asian American, 193 African American or Black (39 born in the United States, 90 in East Africa, 53 in West Africa, and 11 elsewhere), 157 White, and 43 who identified as being of “other races.” All had CHB but were not receiving antiviral treatment at enrollment.

Participants came from 20 centers in the United States and one in Canada. They underwent clinical and laboratory assessments and could receive anti-HBV treatment after they enrolled. Enrollment was from Jan. 14, 2011, to Jan. 28, 2018. Participants were followed at 12 and 24 weeks and every 24 weeks thereafter in the longitudinal cohort study by Mandana Khalili, MD, division of gastroenterology and hepatology, University of California, San Francisco, and colleagues.

Information on patients’ country of birth, duration of U.S. or Canadian residency, educational level, employment, insurance, prior antiviral treatment, family history of HBV or hepatocellular carcinoma (HCC), and mode of transmission were collected by research coordinators.
 

Treatment initiation

During the study period, slightly fewer than one-third (32.5%) of the participants initiated treatment. The incidences were 4.8 per 100 person-years in African American or Black participants, 9.9 per 100 person-years in Asian participants, 6.6 per 100 person-years in White participants, and 7.9 per 100 person-years in those of other races (P < .001).

A lower percentage of African American and Black participants (14%) met the American Association for the Study of Liver Diseases treatment criteria, compared with Asian (22%) and White (27%) participants (P = .01).

When the researchers compared cumulative probability of initiating treatment by race for those who met criteria for treatment, they found no significant differences by race.

At 72 weeks, initiation probability was 0.45 for African American and Black patients and 0.51 for Asian and White patients (P = .68). Similarly, among African American and Black participants who met treatment criteria, there were no significant differences in cumulative probability of treatment by region of birth.

The cumulative percentage of treatment initiation for those who met guideline-based criteria was 62%.

“Among participants with a treatment indication, treatment rates did not differ significantly by race, despite marked differences in educational level, income, and type of health care insurance across the racial groups,” the researchers write. “Moreover, race was not an independent estimator of treatment initiation when adjusting for known factors associated with a higher risk of adverse clinical outcomes, namely, HBV DNA, disease severity, sex, and age.”

Adverse liver outcomes (hepatic decompensation, HCC, liver transplant, and death) were rare and did not vary significantly by race, the researchers write.

One study limitation is that participants were linked to specialty liver clinics, so the findings may not be generalizable to patients who receive care in other settings, the authors note.

The results are “reassuring,” said senior author Anna S. Lok, MD, division of gastroenterology and hepatology at University of Michigan in Ann Arbor. However, she noted, study participants had already overcome barriers to receiving care at major academic centers.

“Once you get into the big academic liver centers, then maybe everything is equal, but in the real world, a lot of people don’t ever get to the big liver centers,” she said. The question becomes: “Are we serving only a portion of the patient population?”

Many factors drive the decision to undergo treatment, including the doctor’s opinion as to need and the patient’s desire to receive treatment, she said.

The study participants who were more likely to get treated were those with higher-level disease who had a stronger indication for treatment, Dr. Lok said.
 

Finding the disparities

Centers for Disease Control and Prevention statistics show that Black people are 3.9 times more likely to have CHB and 2.5 times more likely to die from it than White people, notes H. Nina Kim, MD, with the department of medicine, University of Washington, Seattle, in an accompanying invited commentary.

“The fact that we have not observed racial disparities in treatment initiation does not mean none exist; it means we have to look harder to find them,” she writes.

“We need to examine whether our guidelines for HBV treatment are so complex that it becomes the purview of specialists, thereby restricting access and deepening inequities,” Dr. Kim adds. “We should look closely at retention in care, the step that precedes treatment, and stratify this outcome by race and ethnicity.”

Primary care physicians in some regions might find it difficult to manage patients who have hepatitis B because they see so few of them, Dr. Lok noted.

Dr. Khalili has received grants and consulting fees from Gilead Sciences Inc and grants from Intercept Pharmaceuticals outside the submitted work. Dr. Lok has received grants from Target and consultant fees from Abbott, Ambys, Arbutus, Chroma, Clear B, Enanta, Enochian, GNI, GlaxoSmithKline, Eli Lilly, and Virion outside the submitted work. Coauthors have received grants, consulting fees, or personal fees from Bayer, Boston Scientific, Exact Sciences, Fujifilm Medical Sciences, Gilead Sciences, Glycotest, Redhill Biopharma, Target RWE, MedEd Design, Pontifax, Global Life, the Lynx Group, AstraZeneca, Eisai, Novartis Venture Fund, Grail, QED Therapeutics, Genentech, Hepion Pharmaceuticals, Roche, Abbott, AbbVie, and Pfizer. Dr. Kim has received grants from Gilead Sciences (paid to her institution) outside the submitted work.

A version of this article first appeared on Medscape.com.

Researchers studying differences in treatment initiation for chronic hepatitis B (CHB) among a large, multiracial cohort in North America did not find evidence of disparities by race or socioeconomic status.

Instead, they observed a similar gap across races between the number of people eligible for treatment and those receiving it.

That gap suggests that treatment guidelines need to be simplified and that efforts to increase hepatitis B virus (HBV) awareness and train more clinicians are needed to achieve the World Health Organization’s goal of eliminating HBV by 2030, the researchers write.

The Hepatitis B Research Network study was published online in JAMA Network Open.

The prevalence of CHB in the United States is estimated at 2.4 million. It disproportionately affects persons of Asian or African descent, the investigators note. Their study examined whether treatment initiation and outcomes differ between African American and Black, Asian, and White participants, as well as between African American and Black participants born in North America and East or West Africa.

The research involved 1,550 adult patients: 1,157 Asian American, 193 African American or Black (39 born in the United States, 90 in East Africa, 53 in West Africa, and 11 elsewhere), 157 White, and 43 who identified as being of “other races.” All had CHB but were not receiving antiviral treatment at enrollment.

Participants came from 20 centers in the United States and one in Canada. They underwent clinical and laboratory assessments and could receive anti-HBV treatment after they enrolled. Enrollment was from Jan. 14, 2011, to Jan. 28, 2018. Participants were followed at 12 and 24 weeks and every 24 weeks thereafter in the longitudinal cohort study by Mandana Khalili, MD, division of gastroenterology and hepatology, University of California, San Francisco, and colleagues.

Information on patients’ country of birth, duration of U.S. or Canadian residency, educational level, employment, insurance, prior antiviral treatment, family history of HBV or hepatocellular carcinoma (HCC), and mode of transmission were collected by research coordinators.
 

Treatment initiation

During the study period, slightly fewer than one-third (32.5%) of the participants initiated treatment. The incidences were 4.8 per 100 person-years in African American or Black participants, 9.9 per 100 person-years in Asian participants, 6.6 per 100 person-years in White participants, and 7.9 per 100 person-years in those of other races (P < .001).

A lower percentage of African American and Black participants (14%) met the American Association for the Study of Liver Diseases treatment criteria, compared with Asian (22%) and White (27%) participants (P = .01).

When the researchers compared cumulative probability of initiating treatment by race for those who met criteria for treatment, they found no significant differences by race.

At 72 weeks, initiation probability was 0.45 for African American and Black patients and 0.51 for Asian and White patients (P = .68). Similarly, among African American and Black participants who met treatment criteria, there were no significant differences in cumulative probability of treatment by region of birth.

The cumulative percentage of treatment initiation for those who met guideline-based criteria was 62%.

“Among participants with a treatment indication, treatment rates did not differ significantly by race, despite marked differences in educational level, income, and type of health care insurance across the racial groups,” the researchers write. “Moreover, race was not an independent estimator of treatment initiation when adjusting for known factors associated with a higher risk of adverse clinical outcomes, namely, HBV DNA, disease severity, sex, and age.”

Adverse liver outcomes (hepatic decompensation, HCC, liver transplant, and death) were rare and did not vary significantly by race, the researchers write.

One study limitation is that participants were linked to specialty liver clinics, so the findings may not be generalizable to patients who receive care in other settings, the authors note.

The results are “reassuring,” said senior author Anna S. Lok, MD, division of gastroenterology and hepatology at University of Michigan in Ann Arbor. However, she noted, study participants had already overcome barriers to receiving care at major academic centers.

“Once you get into the big academic liver centers, then maybe everything is equal, but in the real world, a lot of people don’t ever get to the big liver centers,” she said. The question becomes: “Are we serving only a portion of the patient population?”

Many factors drive the decision to undergo treatment, including the doctor’s opinion as to need and the patient’s desire to receive treatment, she said.

The study participants who were more likely to get treated were those with higher-level disease who had a stronger indication for treatment, Dr. Lok said.
 

Finding the disparities

Centers for Disease Control and Prevention statistics show that Black people are 3.9 times more likely to have CHB and 2.5 times more likely to die from it than White people, notes H. Nina Kim, MD, with the department of medicine, University of Washington, Seattle, in an accompanying invited commentary.

“The fact that we have not observed racial disparities in treatment initiation does not mean none exist; it means we have to look harder to find them,” she writes.

“We need to examine whether our guidelines for HBV treatment are so complex that it becomes the purview of specialists, thereby restricting access and deepening inequities,” Dr. Kim adds. “We should look closely at retention in care, the step that precedes treatment, and stratify this outcome by race and ethnicity.”

Primary care physicians in some regions might find it difficult to manage patients who have hepatitis B because they see so few of them, Dr. Lok noted.

Dr. Khalili has received grants and consulting fees from Gilead Sciences Inc and grants from Intercept Pharmaceuticals outside the submitted work. Dr. Lok has received grants from Target and consultant fees from Abbott, Ambys, Arbutus, Chroma, Clear B, Enanta, Enochian, GNI, GlaxoSmithKline, Eli Lilly, and Virion outside the submitted work. Coauthors have received grants, consulting fees, or personal fees from Bayer, Boston Scientific, Exact Sciences, Fujifilm Medical Sciences, Gilead Sciences, Glycotest, Redhill Biopharma, Target RWE, MedEd Design, Pontifax, Global Life, the Lynx Group, AstraZeneca, Eisai, Novartis Venture Fund, Grail, QED Therapeutics, Genentech, Hepion Pharmaceuticals, Roche, Abbott, AbbVie, and Pfizer. Dr. Kim has received grants from Gilead Sciences (paid to her institution) outside the submitted work.

A version of this article first appeared on Medscape.com.

Researchers studying differences in treatment initiation for chronic hepatitis B (CHB) among a large, multiracial cohort in North America did not find evidence of disparities by race or socioeconomic status.

Instead, they observed a similar gap across races between the number of people eligible for treatment and those receiving it.

That gap suggests that treatment guidelines need to be simplified and that efforts to increase hepatitis B virus (HBV) awareness and train more clinicians are needed to achieve the World Health Organization’s goal of eliminating HBV by 2030, the researchers write.

The Hepatitis B Research Network study was published online in JAMA Network Open.

The prevalence of CHB in the United States is estimated at 2.4 million. It disproportionately affects persons of Asian or African descent, the investigators note. Their study examined whether treatment initiation and outcomes differ between African American and Black, Asian, and White participants, as well as between African American and Black participants born in North America and East or West Africa.

The research involved 1,550 adult patients: 1,157 Asian American, 193 African American or Black (39 born in the United States, 90 in East Africa, 53 in West Africa, and 11 elsewhere), 157 White, and 43 who identified as being of “other races.” All had CHB but were not receiving antiviral treatment at enrollment.

Participants came from 20 centers in the United States and one in Canada. They underwent clinical and laboratory assessments and could receive anti-HBV treatment after they enrolled. Enrollment was from Jan. 14, 2011, to Jan. 28, 2018. Participants were followed at 12 and 24 weeks and every 24 weeks thereafter in the longitudinal cohort study by Mandana Khalili, MD, division of gastroenterology and hepatology, University of California, San Francisco, and colleagues.

Information on patients’ country of birth, duration of U.S. or Canadian residency, educational level, employment, insurance, prior antiviral treatment, family history of HBV or hepatocellular carcinoma (HCC), and mode of transmission were collected by research coordinators.
 

Treatment initiation

During the study period, slightly fewer than one-third (32.5%) of the participants initiated treatment. The incidences were 4.8 per 100 person-years in African American or Black participants, 9.9 per 100 person-years in Asian participants, 6.6 per 100 person-years in White participants, and 7.9 per 100 person-years in those of other races (P < .001).

A lower percentage of African American and Black participants (14%) met the American Association for the Study of Liver Diseases treatment criteria, compared with Asian (22%) and White (27%) participants (P = .01).

When the researchers compared cumulative probability of initiating treatment by race for those who met criteria for treatment, they found no significant differences by race.

At 72 weeks, initiation probability was 0.45 for African American and Black patients and 0.51 for Asian and White patients (P = .68). Similarly, among African American and Black participants who met treatment criteria, there were no significant differences in cumulative probability of treatment by region of birth.

The cumulative percentage of treatment initiation for those who met guideline-based criteria was 62%.

“Among participants with a treatment indication, treatment rates did not differ significantly by race, despite marked differences in educational level, income, and type of health care insurance across the racial groups,” the researchers write. “Moreover, race was not an independent estimator of treatment initiation when adjusting for known factors associated with a higher risk of adverse clinical outcomes, namely, HBV DNA, disease severity, sex, and age.”

Adverse liver outcomes (hepatic decompensation, HCC, liver transplant, and death) were rare and did not vary significantly by race, the researchers write.

One study limitation is that participants were linked to specialty liver clinics, so the findings may not be generalizable to patients who receive care in other settings, the authors note.

The results are “reassuring,” said senior author Anna S. Lok, MD, division of gastroenterology and hepatology at University of Michigan in Ann Arbor. However, she noted, study participants had already overcome barriers to receiving care at major academic centers.

“Once you get into the big academic liver centers, then maybe everything is equal, but in the real world, a lot of people don’t ever get to the big liver centers,” she said. The question becomes: “Are we serving only a portion of the patient population?”

Many factors drive the decision to undergo treatment, including the doctor’s opinion as to need and the patient’s desire to receive treatment, she said.

The study participants who were more likely to get treated were those with higher-level disease who had a stronger indication for treatment, Dr. Lok said.
 

Finding the disparities

Centers for Disease Control and Prevention statistics show that Black people are 3.9 times more likely to have CHB and 2.5 times more likely to die from it than White people, notes H. Nina Kim, MD, with the department of medicine, University of Washington, Seattle, in an accompanying invited commentary.

“The fact that we have not observed racial disparities in treatment initiation does not mean none exist; it means we have to look harder to find them,” she writes.

“We need to examine whether our guidelines for HBV treatment are so complex that it becomes the purview of specialists, thereby restricting access and deepening inequities,” Dr. Kim adds. “We should look closely at retention in care, the step that precedes treatment, and stratify this outcome by race and ethnicity.”

Primary care physicians in some regions might find it difficult to manage patients who have hepatitis B because they see so few of them, Dr. Lok noted.

Dr. Khalili has received grants and consulting fees from Gilead Sciences Inc and grants from Intercept Pharmaceuticals outside the submitted work. Dr. Lok has received grants from Target and consultant fees from Abbott, Ambys, Arbutus, Chroma, Clear B, Enanta, Enochian, GNI, GlaxoSmithKline, Eli Lilly, and Virion outside the submitted work. Coauthors have received grants, consulting fees, or personal fees from Bayer, Boston Scientific, Exact Sciences, Fujifilm Medical Sciences, Gilead Sciences, Glycotest, Redhill Biopharma, Target RWE, MedEd Design, Pontifax, Global Life, the Lynx Group, AstraZeneca, Eisai, Novartis Venture Fund, Grail, QED Therapeutics, Genentech, Hepion Pharmaceuticals, Roche, Abbott, AbbVie, and Pfizer. Dr. Kim has received grants from Gilead Sciences (paid to her institution) outside the submitted work.

A version of this article first appeared on Medscape.com.

More than 3 years into the COVID-19 pandemic, lasting symptoms are becoming quite common, with residents of certain states, women, Hispanic people, and transgender people more at risk, a new report shows. 

More than one in four adults sickened by the virus go on to have long COVID, according to a new report from the U.S. Census Bureau. Overall, nearly 15% of all American adults – more than 38 million people nationwide – have had long COVID at some point since the start of the pandemic, according to the report. 

The report, based on survey data collected between March 1 and 13, defines long COVID as symptoms lasting at least 3 months that people didn’t have before getting infected with the virus. 

It is the second recent look at who is most likely to face long COVID. A similar study, published in March, found that women, smokers, and those who had severe COVID-19 infections are most likely to have the disorder

The Census Bureau report found that while 27% of adults nationwide have had long COVID after getting infected with the virus, the condition has impacted some states more than others. The proportion of residents hit with long COVID ranged from a low of 18.8% in New Jersey to a high of 40.7% in West Virginia. 

Other states with long COVID rates well below the national average include Alaska, Maryland, New York, and Wisconsin. At the other end of the spectrum, the states with rates well above the national average include Kentucky, Mississippi, New Mexico, Nevada, South Carolina, South Dakota, and Wyoming.

Long COVID rates also varied by age, gender, and race. People in their 50s were most at risk, with about 31% of those infected by the virus going on to have long COVID, followed by those in their 40s, at more than 29%. 

Far more women (almost 33%) than men (21%) with COVID infections got long COVID. And when researchers looked at long COVID rates based on gender identity, they found that transgender adults were more than twice as likely to have long COVID than cisgender males. Bisexual adults also had much higher long COVID rates than straight, gay, or lesbian people. 

Long COVID was also much more common among Hispanic adults, affecting almost 29% of those infected with the virus, than among White or Black people, who had long COVID rates similar to the national average of 27%. Asian adults had lower long COVID rates than the national average, at less than 20%.

People with disabilities were also at higher risk, with long COVID rates of almost 47%, compared with 24% among adults without disabilities.
 

A version of this article first appeared on WebMD.com.

More than 3 years into the COVID-19 pandemic, lasting symptoms are becoming quite common, with residents of certain states, women, Hispanic people, and transgender people more at risk, a new report shows. 

More than one in four adults sickened by the virus go on to have long COVID, according to a new report from the U.S. Census Bureau. Overall, nearly 15% of all American adults – more than 38 million people nationwide – have had long COVID at some point since the start of the pandemic, according to the report. 

The report, based on survey data collected between March 1 and 13, defines long COVID as symptoms lasting at least 3 months that people didn’t have before getting infected with the virus. 

It is the second recent look at who is most likely to face long COVID. A similar study, published in March, found that women, smokers, and those who had severe COVID-19 infections are most likely to have the disorder

The Census Bureau report found that while 27% of adults nationwide have had long COVID after getting infected with the virus, the condition has impacted some states more than others. The proportion of residents hit with long COVID ranged from a low of 18.8% in New Jersey to a high of 40.7% in West Virginia. 

Other states with long COVID rates well below the national average include Alaska, Maryland, New York, and Wisconsin. At the other end of the spectrum, the states with rates well above the national average include Kentucky, Mississippi, New Mexico, Nevada, South Carolina, South Dakota, and Wyoming.

Long COVID rates also varied by age, gender, and race. People in their 50s were most at risk, with about 31% of those infected by the virus going on to have long COVID, followed by those in their 40s, at more than 29%. 

Far more women (almost 33%) than men (21%) with COVID infections got long COVID. And when researchers looked at long COVID rates based on gender identity, they found that transgender adults were more than twice as likely to have long COVID than cisgender males. Bisexual adults also had much higher long COVID rates than straight, gay, or lesbian people. 

Long COVID was also much more common among Hispanic adults, affecting almost 29% of those infected with the virus, than among White or Black people, who had long COVID rates similar to the national average of 27%. Asian adults had lower long COVID rates than the national average, at less than 20%.

People with disabilities were also at higher risk, with long COVID rates of almost 47%, compared with 24% among adults without disabilities.
 

A version of this article first appeared on WebMD.com.

More than 3 years into the COVID-19 pandemic, lasting symptoms are becoming quite common, with residents of certain states, women, Hispanic people, and transgender people more at risk, a new report shows. 

More than one in four adults sickened by the virus go on to have long COVID, according to a new report from the U.S. Census Bureau. Overall, nearly 15% of all American adults – more than 38 million people nationwide – have had long COVID at some point since the start of the pandemic, according to the report. 

The report, based on survey data collected between March 1 and 13, defines long COVID as symptoms lasting at least 3 months that people didn’t have before getting infected with the virus. 

It is the second recent look at who is most likely to face long COVID. A similar study, published in March, found that women, smokers, and those who had severe COVID-19 infections are most likely to have the disorder

The Census Bureau report found that while 27% of adults nationwide have had long COVID after getting infected with the virus, the condition has impacted some states more than others. The proportion of residents hit with long COVID ranged from a low of 18.8% in New Jersey to a high of 40.7% in West Virginia. 

Other states with long COVID rates well below the national average include Alaska, Maryland, New York, and Wisconsin. At the other end of the spectrum, the states with rates well above the national average include Kentucky, Mississippi, New Mexico, Nevada, South Carolina, South Dakota, and Wyoming.

Long COVID rates also varied by age, gender, and race. People in their 50s were most at risk, with about 31% of those infected by the virus going on to have long COVID, followed by those in their 40s, at more than 29%. 

Far more women (almost 33%) than men (21%) with COVID infections got long COVID. And when researchers looked at long COVID rates based on gender identity, they found that transgender adults were more than twice as likely to have long COVID than cisgender males. Bisexual adults also had much higher long COVID rates than straight, gay, or lesbian people. 

Long COVID was also much more common among Hispanic adults, affecting almost 29% of those infected with the virus, than among White or Black people, who had long COVID rates similar to the national average of 27%. Asian adults had lower long COVID rates than the national average, at less than 20%.

People with disabilities were also at higher risk, with long COVID rates of almost 47%, compared with 24% among adults without disabilities.
 

A version of this article first appeared on WebMD.com.

Some patients with small, nonfunctional pancreatic neuroendocrine tumors (NETs) may benefit from surgery, an analysis of U.S. nationwide data suggests.

Overall, researchers found that surgical resection was associated with a 42% improvement in overall survival among patients with small tumors of 1.1-2.0 cm, but not tumors 1 cm or smaller. Among those with 1.1- to 2.0-cm tumors, the survival benefit following surgery was most notable among patients aged 64 years or younger and those with no comorbidities.

The findings were published in JAMA Network Open.

While surgical resection has been the first-line treatment for patients with functional or symptomatic localized, low-grade pancreatic NETs, surgery for asymptomatic low-grade nonfunctional pancreatic NETs of 2 cm or less “remains unclear even in consensus guidelines,” study author Richard D. Schulick, MD, MBA, of the University of Colorado at Denver, Aurora, and colleagues write.

Consensus guidelines from the European Neuroendocrine Tumor Society, for instance, indicate surveillance for these smaller tumors, while those from the Japan Neuroendocrine Tumor Society recommend surgery. The National Comprehensive Cancer Network (NCCN), which recently updated its guidelines, suggests observation as an option for patients with tumors as large as 2.0 cm but who are strongly considering resection.

To determine whether surgical resection of these smaller lesions influences overall survival, the team combed the U.S. National Cancer Database and identified 4,641 patients with nonfunctional pancreatic NETs up to 2.0 cm in size.

Researchers divided patients by tumor sizes of up to 1 cm (group 1a) and 1.1-2.0 cm (group 1b) and examined a range of variables, including age, comorbidities, tumor location and differentiation, and overall survival.

Overall, 1,278 patients had tumors measuring up to 1.0 cm (group 1a), and 3,363 had tumors measuring 1.1-2.0 cm (group 1b). The mean age across both groups was 60.5 years; about half were men, and most (77.4%) were White.

Over a median follow-up of 47.1 months, the surgical resection rate was significantly lower among patients in group 1a (82.0%) than in group 1b (87.0%). Patients who underwent resection, on average, were younger and were more likely to have tumors located in the pancreas tail and to have clinical lymph node metastasis.

Overall, the team found that surgical resection was associated with longer overall survival for patients with tumors of 1.1-2.0 cm (hazard ratio, 0.58) but not 1 cm or smaller (HR, 0.68; P = .12).

Among patients in group 1b (those with 1.1- to 2.0-cm tumors), the team also found that age 64 years or younger (adjusted HR, 0.34), treatment at academic institutions (aHR, 0.40), absence of comorbidities (aHR, 0.53), absence of clinical lymph node metastasis (aHR, 0.54), as well as tumors in the body (aHR, 0.36) and tail (aHR, 0.37) of the pancreas were significantly associated with increased survival after surgical resection.

Among patients with resected small nonmetastatic nonfunctional pancreatic NETs, pathologic lymph node metastasis (HR, 1.28; P = .43) and lymphovascular invasion (HR, 0.85; P = .75) were not associated with overall survival.

The results of the study “support an association between surgical resection and increased survival in select patients” among those with tumors 1.1-2.0 cm, Dr. Schulick and colleagues write.

James R. Howe, MD, who was not involved in the research, highlighted that the study tries to answer an important clinical problem: What should we do with small, nonfunctional pancreatic NETs?

However, he noted “significant selection bias” among patients included in the dataset.

More than 80% of patients with tumors under 1 cm underwent surgery, which “is not consistent with what most people would do in practice,” said Dr. Howe, of the division of surgical oncology and endocrine surgery, University of Iowa Hospitals and Clinics, Iowa City. “Most would be observed and might not make it into the National Cancer Database.”

Dr. Howe pointed to an even larger group of patients with pancreatic NETs who were not included in the database – those with CT evidence of a pancreatic NET but without biopsy confirmation.

With many patients potentially missing from the data, “it is very difficult to know that patients with tumors 1.1-2.0 cm in size are really benefiting from surgery, as suggested in the article,” he said.

Dr. Howe highlighted a recent interim analysis that indicated that active surveillance is the “preferred approach” for tumors no larger than 2 cm.

Dr. Schulick and the research team acknowledge limitations in their dataset, including the potential for coding errors and lack of information on the Ki-67 index, symptoms, incidental diagnosis, and recurrence.

Overall, though, the authors conclude that the findings “support the recommendations of the NCCN guidelines to resect small [nonfunctional pancreatic] NETs for selected patients” but need “to be further investigated to verify the results.”

The study was supported by a grant from the Japan Society for the Promotion of Science Overseas Challenge Program for Young Researchers and a grant from the Mochida Memorial Foundation for Medical and Pharmaceutical Research. Dr. Schulick is the inventor of a patent licensed to DynamiCure and has received laboratory equipment from Haemonetics outside the submitted work. Other authors also have relevant financial relationships.

A version of this article first appeared on Medscape.com.

Some patients with small, nonfunctional pancreatic neuroendocrine tumors (NETs) may benefit from surgery, an analysis of U.S. nationwide data suggests.

Overall, researchers found that surgical resection was associated with a 42% improvement in overall survival among patients with small tumors of 1.1-2.0 cm, but not tumors 1 cm or smaller. Among those with 1.1- to 2.0-cm tumors, the survival benefit following surgery was most notable among patients aged 64 years or younger and those with no comorbidities.

The findings were published in JAMA Network Open.

While surgical resection has been the first-line treatment for patients with functional or symptomatic localized, low-grade pancreatic NETs, surgery for asymptomatic low-grade nonfunctional pancreatic NETs of 2 cm or less “remains unclear even in consensus guidelines,” study author Richard D. Schulick, MD, MBA, of the University of Colorado at Denver, Aurora, and colleagues write.

Consensus guidelines from the European Neuroendocrine Tumor Society, for instance, indicate surveillance for these smaller tumors, while those from the Japan Neuroendocrine Tumor Society recommend surgery. The National Comprehensive Cancer Network (NCCN), which recently updated its guidelines, suggests observation as an option for patients with tumors as large as 2.0 cm but who are strongly considering resection.

To determine whether surgical resection of these smaller lesions influences overall survival, the team combed the U.S. National Cancer Database and identified 4,641 patients with nonfunctional pancreatic NETs up to 2.0 cm in size.

Researchers divided patients by tumor sizes of up to 1 cm (group 1a) and 1.1-2.0 cm (group 1b) and examined a range of variables, including age, comorbidities, tumor location and differentiation, and overall survival.

Overall, 1,278 patients had tumors measuring up to 1.0 cm (group 1a), and 3,363 had tumors measuring 1.1-2.0 cm (group 1b). The mean age across both groups was 60.5 years; about half were men, and most (77.4%) were White.

Over a median follow-up of 47.1 months, the surgical resection rate was significantly lower among patients in group 1a (82.0%) than in group 1b (87.0%). Patients who underwent resection, on average, were younger and were more likely to have tumors located in the pancreas tail and to have clinical lymph node metastasis.

Overall, the team found that surgical resection was associated with longer overall survival for patients with tumors of 1.1-2.0 cm (hazard ratio, 0.58) but not 1 cm or smaller (HR, 0.68; P = .12).

Among patients in group 1b (those with 1.1- to 2.0-cm tumors), the team also found that age 64 years or younger (adjusted HR, 0.34), treatment at academic institutions (aHR, 0.40), absence of comorbidities (aHR, 0.53), absence of clinical lymph node metastasis (aHR, 0.54), as well as tumors in the body (aHR, 0.36) and tail (aHR, 0.37) of the pancreas were significantly associated with increased survival after surgical resection.

Among patients with resected small nonmetastatic nonfunctional pancreatic NETs, pathologic lymph node metastasis (HR, 1.28; P = .43) and lymphovascular invasion (HR, 0.85; P = .75) were not associated with overall survival.

The results of the study “support an association between surgical resection and increased survival in select patients” among those with tumors 1.1-2.0 cm, Dr. Schulick and colleagues write.

James R. Howe, MD, who was not involved in the research, highlighted that the study tries to answer an important clinical problem: What should we do with small, nonfunctional pancreatic NETs?

However, he noted “significant selection bias” among patients included in the dataset.

More than 80% of patients with tumors under 1 cm underwent surgery, which “is not consistent with what most people would do in practice,” said Dr. Howe, of the division of surgical oncology and endocrine surgery, University of Iowa Hospitals and Clinics, Iowa City. “Most would be observed and might not make it into the National Cancer Database.”

Dr. Howe pointed to an even larger group of patients with pancreatic NETs who were not included in the database – those with CT evidence of a pancreatic NET but without biopsy confirmation.

With many patients potentially missing from the data, “it is very difficult to know that patients with tumors 1.1-2.0 cm in size are really benefiting from surgery, as suggested in the article,” he said.

Dr. Howe highlighted a recent interim analysis that indicated that active surveillance is the “preferred approach” for tumors no larger than 2 cm.

Dr. Schulick and the research team acknowledge limitations in their dataset, including the potential for coding errors and lack of information on the Ki-67 index, symptoms, incidental diagnosis, and recurrence.

Overall, though, the authors conclude that the findings “support the recommendations of the NCCN guidelines to resect small [nonfunctional pancreatic] NETs for selected patients” but need “to be further investigated to verify the results.”

The study was supported by a grant from the Japan Society for the Promotion of Science Overseas Challenge Program for Young Researchers and a grant from the Mochida Memorial Foundation for Medical and Pharmaceutical Research. Dr. Schulick is the inventor of a patent licensed to DynamiCure and has received laboratory equipment from Haemonetics outside the submitted work. Other authors also have relevant financial relationships.

A version of this article first appeared on Medscape.com.

Some patients with small, nonfunctional pancreatic neuroendocrine tumors (NETs) may benefit from surgery, an analysis of U.S. nationwide data suggests.

Overall, researchers found that surgical resection was associated with a 42% improvement in overall survival among patients with small tumors of 1.1-2.0 cm, but not tumors 1 cm or smaller. Among those with 1.1- to 2.0-cm tumors, the survival benefit following surgery was most notable among patients aged 64 years or younger and those with no comorbidities.

The findings were published in JAMA Network Open.

While surgical resection has been the first-line treatment for patients with functional or symptomatic localized, low-grade pancreatic NETs, surgery for asymptomatic low-grade nonfunctional pancreatic NETs of 2 cm or less “remains unclear even in consensus guidelines,” study author Richard D. Schulick, MD, MBA, of the University of Colorado at Denver, Aurora, and colleagues write.

Consensus guidelines from the European Neuroendocrine Tumor Society, for instance, indicate surveillance for these smaller tumors, while those from the Japan Neuroendocrine Tumor Society recommend surgery. The National Comprehensive Cancer Network (NCCN), which recently updated its guidelines, suggests observation as an option for patients with tumors as large as 2.0 cm but who are strongly considering resection.

To determine whether surgical resection of these smaller lesions influences overall survival, the team combed the U.S. National Cancer Database and identified 4,641 patients with nonfunctional pancreatic NETs up to 2.0 cm in size.

Researchers divided patients by tumor sizes of up to 1 cm (group 1a) and 1.1-2.0 cm (group 1b) and examined a range of variables, including age, comorbidities, tumor location and differentiation, and overall survival.

Overall, 1,278 patients had tumors measuring up to 1.0 cm (group 1a), and 3,363 had tumors measuring 1.1-2.0 cm (group 1b). The mean age across both groups was 60.5 years; about half were men, and most (77.4%) were White.

Over a median follow-up of 47.1 months, the surgical resection rate was significantly lower among patients in group 1a (82.0%) than in group 1b (87.0%). Patients who underwent resection, on average, were younger and were more likely to have tumors located in the pancreas tail and to have clinical lymph node metastasis.

Overall, the team found that surgical resection was associated with longer overall survival for patients with tumors of 1.1-2.0 cm (hazard ratio, 0.58) but not 1 cm or smaller (HR, 0.68; P = .12).

Among patients in group 1b (those with 1.1- to 2.0-cm tumors), the team also found that age 64 years or younger (adjusted HR, 0.34), treatment at academic institutions (aHR, 0.40), absence of comorbidities (aHR, 0.53), absence of clinical lymph node metastasis (aHR, 0.54), as well as tumors in the body (aHR, 0.36) and tail (aHR, 0.37) of the pancreas were significantly associated with increased survival after surgical resection.

Among patients with resected small nonmetastatic nonfunctional pancreatic NETs, pathologic lymph node metastasis (HR, 1.28; P = .43) and lymphovascular invasion (HR, 0.85; P = .75) were not associated with overall survival.

The results of the study “support an association between surgical resection and increased survival in select patients” among those with tumors 1.1-2.0 cm, Dr. Schulick and colleagues write.

James R. Howe, MD, who was not involved in the research, highlighted that the study tries to answer an important clinical problem: What should we do with small, nonfunctional pancreatic NETs?

However, he noted “significant selection bias” among patients included in the dataset.

More than 80% of patients with tumors under 1 cm underwent surgery, which “is not consistent with what most people would do in practice,” said Dr. Howe, of the division of surgical oncology and endocrine surgery, University of Iowa Hospitals and Clinics, Iowa City. “Most would be observed and might not make it into the National Cancer Database.”

Dr. Howe pointed to an even larger group of patients with pancreatic NETs who were not included in the database – those with CT evidence of a pancreatic NET but without biopsy confirmation.

With many patients potentially missing from the data, “it is very difficult to know that patients with tumors 1.1-2.0 cm in size are really benefiting from surgery, as suggested in the article,” he said.

Dr. Howe highlighted a recent interim analysis that indicated that active surveillance is the “preferred approach” for tumors no larger than 2 cm.

Dr. Schulick and the research team acknowledge limitations in their dataset, including the potential for coding errors and lack of information on the Ki-67 index, symptoms, incidental diagnosis, and recurrence.

Overall, though, the authors conclude that the findings “support the recommendations of the NCCN guidelines to resect small [nonfunctional pancreatic] NETs for selected patients” but need “to be further investigated to verify the results.”

The study was supported by a grant from the Japan Society for the Promotion of Science Overseas Challenge Program for Young Researchers and a grant from the Mochida Memorial Foundation for Medical and Pharmaceutical Research. Dr. Schulick is the inventor of a patent licensed to DynamiCure and has received laboratory equipment from Haemonetics outside the submitted work. Other authors also have relevant financial relationships.

A version of this article first appeared on Medscape.com.

Colorectal cancer (CRC) remains the second most common cause of cancer-related death in the United States. Although the past several decades have seen significantly greater emphasis on screening and disease prevention for CRC, it has also become increasingly apparent that the age profile and associated risks for this cancer are rapidly changing.

Evidence of this can be found in recently released CRC statistics from the American Cancer Society, which are updated every 3 years using population-based cancer registries.

The incidence in CRC has shown a progressive decline over the past 4 decades. However, whereas in the 2000s there was an average decline of approximately 3%-4% annually, it slowed to 1% per year between 2011 and 2019. This effect is in part because of the trends among younger individuals (< 55 years), in whom the incidence of CRC has increased by 9% over the past 25 years.

The incidence of regional-stage disease also increased by 2%-3% per year for those younger than 65 years, with an additional increase in the incidence of more advanced/distant disease by 0.5%-3% per year. The latter finding represents a reversal of earlier trends observed for staged disease in the decade from 1995 to 2005.

These recent statistics reveal other notable changes that occurred in parallel with the increased incidence of younger-onset CRC. There was a significant shift to left-sided tumors, with a 4% increase in rectal cancers in the decades spanning 1995–2019.

Although the overall mortality declined 2% from 2011 to 2020, the reverse was seen in patients younger than 50 years, in whom there was an increase by 0.5%-3% annually.

Available incidence and mortality data for the current year are understandably lacking, as there is a 2- to 4-year lag for data collection and assimilation, and there have also been methodological changes for tracking and projections. Nonetheless, 2023 projections estimate that there will be 153,020 new cases in the United States, with 19,550 (13%) to occur in those younger than 50 years and 33% in those aged 50-64 years. Overall, 43% of cases are projected to occur in those aged 45-49 years, which is noteworthy given that these ages are now included in the most current CRC screening recommendations.

Further underscoring the risks posed by earlier-onset trends is the projection of 52,550 CRC-related deaths in 2023, with 7% estimated to occur in those younger than 50 years.
 

What’s behind the trend toward younger onset?

The specific factors contributing to increasing rates of CRC in younger individuals are not well known, but there are several plausible explanations. Notable possible contributing factors reported in the literature include obesity, smoking, alcohol, diet, and microbial changes, among other demographic variables. Exposure to high-fructose corn syrup, sugar-sweetened beverages, and processed meats has also recently received attention as contributing dietary risk factors.

The shifting trends toward the onset of CRC among younger patients are now clearly established, with approximately 20% of new cases occurring in those in their early 50s or younger and a higher rate of left-sided tumor development. Unfortunately, these shifts are also associated with a more advanced stage of disease.

There are unique clinical challenges when it comes to identifying younger-onset CRC. A low level of suspicion among primary care providers that their younger patients may have CRC can result in delays in their receiving clinically appropriate diagnostic testing (particularly for overt or occult bleeding/iron deficiency). Younger patients may also be less likely to know about or adhere to new recommendations that they undergo screening.

The landscape for age-related CRC is changing. Although there are many obstacles for implementing new practices, these recent findings from the ACS also highlight a clear path for improvement.

David A. Johnson, MD, is professor of medicine and chief of gastroenterology at Eastern Virginia Medical School, Norfolk, and a past president of the American College of Gastroenterology.

A version of this article first appeared on Medscape.com.

Colorectal cancer (CRC) remains the second most common cause of cancer-related death in the United States. Although the past several decades have seen significantly greater emphasis on screening and disease prevention for CRC, it has also become increasingly apparent that the age profile and associated risks for this cancer are rapidly changing.

Evidence of this can be found in recently released CRC statistics from the American Cancer Society, which are updated every 3 years using population-based cancer registries.

The incidence in CRC has shown a progressive decline over the past 4 decades. However, whereas in the 2000s there was an average decline of approximately 3%-4% annually, it slowed to 1% per year between 2011 and 2019. This effect is in part because of the trends among younger individuals (< 55 years), in whom the incidence of CRC has increased by 9% over the past 25 years.

The incidence of regional-stage disease also increased by 2%-3% per year for those younger than 65 years, with an additional increase in the incidence of more advanced/distant disease by 0.5%-3% per year. The latter finding represents a reversal of earlier trends observed for staged disease in the decade from 1995 to 2005.

These recent statistics reveal other notable changes that occurred in parallel with the increased incidence of younger-onset CRC. There was a significant shift to left-sided tumors, with a 4% increase in rectal cancers in the decades spanning 1995–2019.

Although the overall mortality declined 2% from 2011 to 2020, the reverse was seen in patients younger than 50 years, in whom there was an increase by 0.5%-3% annually.

Available incidence and mortality data for the current year are understandably lacking, as there is a 2- to 4-year lag for data collection and assimilation, and there have also been methodological changes for tracking and projections. Nonetheless, 2023 projections estimate that there will be 153,020 new cases in the United States, with 19,550 (13%) to occur in those younger than 50 years and 33% in those aged 50-64 years. Overall, 43% of cases are projected to occur in those aged 45-49 years, which is noteworthy given that these ages are now included in the most current CRC screening recommendations.

Further underscoring the risks posed by earlier-onset trends is the projection of 52,550 CRC-related deaths in 2023, with 7% estimated to occur in those younger than 50 years.
 

What’s behind the trend toward younger onset?

The specific factors contributing to increasing rates of CRC in younger individuals are not well known, but there are several plausible explanations. Notable possible contributing factors reported in the literature include obesity, smoking, alcohol, diet, and microbial changes, among other demographic variables. Exposure to high-fructose corn syrup, sugar-sweetened beverages, and processed meats has also recently received attention as contributing dietary risk factors.

The shifting trends toward the onset of CRC among younger patients are now clearly established, with approximately 20% of new cases occurring in those in their early 50s or younger and a higher rate of left-sided tumor development. Unfortunately, these shifts are also associated with a more advanced stage of disease.

There are unique clinical challenges when it comes to identifying younger-onset CRC. A low level of suspicion among primary care providers that their younger patients may have CRC can result in delays in their receiving clinically appropriate diagnostic testing (particularly for overt or occult bleeding/iron deficiency). Younger patients may also be less likely to know about or adhere to new recommendations that they undergo screening.

The landscape for age-related CRC is changing. Although there are many obstacles for implementing new practices, these recent findings from the ACS also highlight a clear path for improvement.

David A. Johnson, MD, is professor of medicine and chief of gastroenterology at Eastern Virginia Medical School, Norfolk, and a past president of the American College of Gastroenterology.

A version of this article first appeared on Medscape.com.

Colorectal cancer (CRC) remains the second most common cause of cancer-related death in the United States. Although the past several decades have seen significantly greater emphasis on screening and disease prevention for CRC, it has also become increasingly apparent that the age profile and associated risks for this cancer are rapidly changing.

Evidence of this can be found in recently released CRC statistics from the American Cancer Society, which are updated every 3 years using population-based cancer registries.

The incidence in CRC has shown a progressive decline over the past 4 decades. However, whereas in the 2000s there was an average decline of approximately 3%-4% annually, it slowed to 1% per year between 2011 and 2019. This effect is in part because of the trends among younger individuals (< 55 years), in whom the incidence of CRC has increased by 9% over the past 25 years.

The incidence of regional-stage disease also increased by 2%-3% per year for those younger than 65 years, with an additional increase in the incidence of more advanced/distant disease by 0.5%-3% per year. The latter finding represents a reversal of earlier trends observed for staged disease in the decade from 1995 to 2005.

These recent statistics reveal other notable changes that occurred in parallel with the increased incidence of younger-onset CRC. There was a significant shift to left-sided tumors, with a 4% increase in rectal cancers in the decades spanning 1995–2019.

Although the overall mortality declined 2% from 2011 to 2020, the reverse was seen in patients younger than 50 years, in whom there was an increase by 0.5%-3% annually.

Available incidence and mortality data for the current year are understandably lacking, as there is a 2- to 4-year lag for data collection and assimilation, and there have also been methodological changes for tracking and projections. Nonetheless, 2023 projections estimate that there will be 153,020 new cases in the United States, with 19,550 (13%) to occur in those younger than 50 years and 33% in those aged 50-64 years. Overall, 43% of cases are projected to occur in those aged 45-49 years, which is noteworthy given that these ages are now included in the most current CRC screening recommendations.

Further underscoring the risks posed by earlier-onset trends is the projection of 52,550 CRC-related deaths in 2023, with 7% estimated to occur in those younger than 50 years.
 

What’s behind the trend toward younger onset?

The specific factors contributing to increasing rates of CRC in younger individuals are not well known, but there are several plausible explanations. Notable possible contributing factors reported in the literature include obesity, smoking, alcohol, diet, and microbial changes, among other demographic variables. Exposure to high-fructose corn syrup, sugar-sweetened beverages, and processed meats has also recently received attention as contributing dietary risk factors.

The shifting trends toward the onset of CRC among younger patients are now clearly established, with approximately 20% of new cases occurring in those in their early 50s or younger and a higher rate of left-sided tumor development. Unfortunately, these shifts are also associated with a more advanced stage of disease.

There are unique clinical challenges when it comes to identifying younger-onset CRC. A low level of suspicion among primary care providers that their younger patients may have CRC can result in delays in their receiving clinically appropriate diagnostic testing (particularly for overt or occult bleeding/iron deficiency). Younger patients may also be less likely to know about or adhere to new recommendations that they undergo screening.

The landscape for age-related CRC is changing. Although there are many obstacles for implementing new practices, these recent findings from the ACS also highlight a clear path for improvement.

David A. Johnson, MD, is professor of medicine and chief of gastroenterology at Eastern Virginia Medical School, Norfolk, and a past president of the American College of Gastroenterology.

A version of this article first appeared on Medscape.com.

Although drugstore shelves might suggest otherwise, affordable dietary supplements that provide critical nutrients in appropriate doses for pregnant women are virtually nonexistent, researchers have found.

In a new study published in the American Journal of Clinical Nutrition, investigators observed what many physicians have long suspected: Most prenatal vitamins and other supplements do not adequately make up the difference of what food-based intake of nutrients leave lacking. Despite patients believing they are getting everything they need with their product purchase, they fall short of guideline-recommended requirements.

“There is no magic pill,” said Katherine A. Sauder, PhD, an associate professor of pediatrics at the University of Colorado Anschutz Medical Campus, Aurora, and lead author of the study. “There is no easy answer here.”

Getty Images

A version of this article first appeared on Medscape.com.

Although drugstore shelves might suggest otherwise, affordable dietary supplements that provide critical nutrients in appropriate doses for pregnant women are virtually nonexistent, researchers have found.

In a new study published in the American Journal of Clinical Nutrition, investigators observed what many physicians have long suspected: Most prenatal vitamins and other supplements do not adequately make up the difference of what food-based intake of nutrients leave lacking. Despite patients believing they are getting everything they need with their product purchase, they fall short of guideline-recommended requirements.

“There is no magic pill,” said Katherine A. Sauder, PhD, an associate professor of pediatrics at the University of Colorado Anschutz Medical Campus, Aurora, and lead author of the study. “There is no easy answer here.”

Getty Images

A version of this article first appeared on Medscape.com.

Although drugstore shelves might suggest otherwise, affordable dietary supplements that provide critical nutrients in appropriate doses for pregnant women are virtually nonexistent, researchers have found.

In a new study published in the American Journal of Clinical Nutrition, investigators observed what many physicians have long suspected: Most prenatal vitamins and other supplements do not adequately make up the difference of what food-based intake of nutrients leave lacking. Despite patients believing they are getting everything they need with their product purchase, they fall short of guideline-recommended requirements.

“There is no magic pill,” said Katherine A. Sauder, PhD, an associate professor of pediatrics at the University of Colorado Anschutz Medical Campus, Aurora, and lead author of the study. “There is no easy answer here.”

Getty Images

A version of this article first appeared on Medscape.com.

Phototherapy is a safe, effective, noninvasive, and inexpensive way of boosting cognition for patients with dementia, new research suggests. It may be “one of the most promising interventions for improving core symptoms” of the disease.

A new meta-analysis shows that patients with dementia who received phototherapy experienced significant cognitive improvement, compared with those who received usual treatment. However, there were no differences between study groups in terms of improved depression, agitation, or sleep problems.

“Our meta-analysis indicates that phototherapy improved cognitive function in patients with dementia. ... This suggests that phototherapy may be one of the most promising non-pharmacological interventions for improving core symptoms of dementia,” wrote the investigators, led by Xinlian Lu, Peking University, Beijing.

The study was published online in Brain and Behavior.
 

A new treatment option?

“As drug treatment for dementia has limitations such as medical contraindications, limited efficacy, and adverse effects, nonpharmacological therapy has been increasingly regarded as a critical part of comprehensive dementia care,” the investigators noted.

Phototherapy, which utilizes full-spectrum bright light (usually > 600 lux) or wavelength-specific light (for example, blue-enriched or blue-green), is a “promising nonpharmacological therapy” that is noninvasive, inexpensive, and safe.

Most studies of phototherapy have focused on sleep. Findings have shown “high heterogeneity” among the interventions and the populations in the studies, and results have been “inconsistent.” In addition, the effect of phototherapy on cognitive function and behavioral and psychological symptoms of dementia (BPSD) “still need to be clarified.”

In the systematic review and meta-analysis, the investigators examined the effects of phototherapy on cognitive function, BPSD, and sleep in older adults with dementia.

They searched several databases for randomized controlled trials that investigated phototherapy interventions for elderly patients. The primary outcome was cognitive function, which was assessed via the Mini-Mental State Examination (MMSE).

Secondary outcomes included BPSD, including agitation, anxiety, irritability, depression, anxiety, and sleep disturbances, as assessed by the Cornell Scale for Depression in Dementia (CSDD), the Cohen-Mansfield Agitation Inventory (CMAI), the Neuropsychiatric Inventory (NPI), and measures of sleep, including total sleep time (TST), sleep efficiency (SE), and sleep disorders, as assessed by the Sleep Disorder Inventory (SDI).

To be included in the analysis, individual studies had to focus on elderly adults who had some form of dementia. In addition, a group receiving a phototherapy intervention had to be compared with a nonintervention group, and the study had to specify one of the above-defined outcomes.

The review included phototherapy interventions of all forms, frequencies, and durations, including use of bright light, LED light, and blue or blue-green light.
 

Regulating circadian rhythm

Twelve studies met the researchers’ criteria. They included a total of 766 patients with dementia – 426 in the intervention group and 340 in the control group. The mean ages ranged from 73.73 to 85.9 years, and there was a greater number of female than male participants.

Of the studies, seven employed routine daily light in the control group, while the others used either dim light (≤ 50 lux) or devices without light.

The researchers found “significant positive intervention effects” for global cognitive function. Improvements in postintervention MMSE scores differed significantly between the experimental groups and control groups (mean difference, 2.68; 95% confidence interval, 1.38-3.98; I2 = 0%).

No significant differences were found in the effects of intervention on depression symptoms, as evidenced in CSDD scores (MD, −0.70; 95% CI, −3.10 to 1.70; I² = 81%).

Among patients with higher CMAI scores, which indicate more severe agitation behaviors, there was a “trend of decreasing CMAI scores” after phototherapy (MD, −3.12; 95% CI, −8.05 to 1.82; I² = 0%). No significant difference in NPI scores was observed between the two groups.

Similarly, no significant difference was found between the two groups in TST, SE, or SDI scores.

Adverse effects were infrequent and were not severe. Two of the 426 patients in the intervention group experienced mild ocular irritation, and one experienced slight transient redness of the forehead.

Light “may compensate for the reduction in the visual sensory input of patients with dementia and stimulate specific neurons in the suprachiasmatic nucleus of the hypothalamus to regulate circadian rhythm,” the researchers suggested.

“As circadian rhythms are involved in optimal brain function, light supplementation may act on the synchronizing/phase-shifting effects of circadian rhythms to improve cognitive function,” they added.

They note that the light box is the “most commonly used device in phototherapy.” Light boxes provide full-spectrum bright light, usually greater than 2,500 lux. The duration is 30 minutes in the daytime, and treatment lasts 4-8 weeks.

The investigators cautioned that the light box should be placed 60 cm away from the patient or above the patient’s eye level. They said that a ceiling-mounted light is a “good choice” for providing whole-day phototherapy, since such lights do not interfere with the patient’s daily routine, reduce the demand on staff, and contribute to better adherence.

Phototherapy helmets and glasses are also available. These portable devices “allow for better control of light intensity and are ergonomic without interfering with patients’ normal activities.”

The researchers noted that “further well-designed studies are needed to explore the most effective clinical implementation conditions, including device type, duration, frequency, and time.”
 

Easy to use

Mariana Figueiro, PhD, professor and director of the Light and Health Research Center, department of population health medicine, Icahn School of Medicine at Mount Sinai, New York, said light is the “major stimulus for the circadian system, and a robust light-dark pattern daily (which can be given by light therapy during the day) improves sleep and behavior and reduces depression and agitation.”

Dr. Figueiro, who was not involved with the current study, noted that patients with dementia “have sleep issues, which can further affect their cognition; improvement in sleep leads to improvement in cognition,” and this may be an underlying mechanism associated with these results.

The clinical significance of the study “is that this is a nonpharmacological intervention and can be easily applied in the homes or controlled facilities, and it can be used with any other medication,” she pointed out.

“More importantly, sleep medications have negative side effects, so the use of nonpharmacological interventions improving sleep and cognition is great for clinical practice,” she added.

However, she took issue with the finding that phototherapy was not effective for depression and agitation, noting that there were “too few studies to say for sure that light therapy is ineffective at improving these outcomes.”

The research received no external funding. The authors and Dr. Figueiro disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Phototherapy is a safe, effective, noninvasive, and inexpensive way of boosting cognition for patients with dementia, new research suggests. It may be “one of the most promising interventions for improving core symptoms” of the disease.

A new meta-analysis shows that patients with dementia who received phototherapy experienced significant cognitive improvement, compared with those who received usual treatment. However, there were no differences between study groups in terms of improved depression, agitation, or sleep problems.

“Our meta-analysis indicates that phototherapy improved cognitive function in patients with dementia. ... This suggests that phototherapy may be one of the most promising non-pharmacological interventions for improving core symptoms of dementia,” wrote the investigators, led by Xinlian Lu, Peking University, Beijing.

The study was published online in Brain and Behavior.
 

A new treatment option?

“As drug treatment for dementia has limitations such as medical contraindications, limited efficacy, and adverse effects, nonpharmacological therapy has been increasingly regarded as a critical part of comprehensive dementia care,” the investigators noted.

Phototherapy, which utilizes full-spectrum bright light (usually > 600 lux) or wavelength-specific light (for example, blue-enriched or blue-green), is a “promising nonpharmacological therapy” that is noninvasive, inexpensive, and safe.

Most studies of phototherapy have focused on sleep. Findings have shown “high heterogeneity” among the interventions and the populations in the studies, and results have been “inconsistent.” In addition, the effect of phototherapy on cognitive function and behavioral and psychological symptoms of dementia (BPSD) “still need to be clarified.”

In the systematic review and meta-analysis, the investigators examined the effects of phototherapy on cognitive function, BPSD, and sleep in older adults with dementia.

They searched several databases for randomized controlled trials that investigated phototherapy interventions for elderly patients. The primary outcome was cognitive function, which was assessed via the Mini-Mental State Examination (MMSE).

Secondary outcomes included BPSD, including agitation, anxiety, irritability, depression, anxiety, and sleep disturbances, as assessed by the Cornell Scale for Depression in Dementia (CSDD), the Cohen-Mansfield Agitation Inventory (CMAI), the Neuropsychiatric Inventory (NPI), and measures of sleep, including total sleep time (TST), sleep efficiency (SE), and sleep disorders, as assessed by the Sleep Disorder Inventory (SDI).

To be included in the analysis, individual studies had to focus on elderly adults who had some form of dementia. In addition, a group receiving a phototherapy intervention had to be compared with a nonintervention group, and the study had to specify one of the above-defined outcomes.

The review included phototherapy interventions of all forms, frequencies, and durations, including use of bright light, LED light, and blue or blue-green light.
 

Regulating circadian rhythm

Twelve studies met the researchers’ criteria. They included a total of 766 patients with dementia – 426 in the intervention group and 340 in the control group. The mean ages ranged from 73.73 to 85.9 years, and there was a greater number of female than male participants.

Of the studies, seven employed routine daily light in the control group, while the others used either dim light (≤ 50 lux) or devices without light.

The researchers found “significant positive intervention effects” for global cognitive function. Improvements in postintervention MMSE scores differed significantly between the experimental groups and control groups (mean difference, 2.68; 95% confidence interval, 1.38-3.98; I2 = 0%).

No significant differences were found in the effects of intervention on depression symptoms, as evidenced in CSDD scores (MD, −0.70; 95% CI, −3.10 to 1.70; I² = 81%).

Among patients with higher CMAI scores, which indicate more severe agitation behaviors, there was a “trend of decreasing CMAI scores” after phototherapy (MD, −3.12; 95% CI, −8.05 to 1.82; I² = 0%). No significant difference in NPI scores was observed between the two groups.

Similarly, no significant difference was found between the two groups in TST, SE, or SDI scores.

Adverse effects were infrequent and were not severe. Two of the 426 patients in the intervention group experienced mild ocular irritation, and one experienced slight transient redness of the forehead.

Light “may compensate for the reduction in the visual sensory input of patients with dementia and stimulate specific neurons in the suprachiasmatic nucleus of the hypothalamus to regulate circadian rhythm,” the researchers suggested.

“As circadian rhythms are involved in optimal brain function, light supplementation may act on the synchronizing/phase-shifting effects of circadian rhythms to improve cognitive function,” they added.

They note that the light box is the “most commonly used device in phototherapy.” Light boxes provide full-spectrum bright light, usually greater than 2,500 lux. The duration is 30 minutes in the daytime, and treatment lasts 4-8 weeks.

The investigators cautioned that the light box should be placed 60 cm away from the patient or above the patient’s eye level. They said that a ceiling-mounted light is a “good choice” for providing whole-day phototherapy, since such lights do not interfere with the patient’s daily routine, reduce the demand on staff, and contribute to better adherence.

Phototherapy helmets and glasses are also available. These portable devices “allow for better control of light intensity and are ergonomic without interfering with patients’ normal activities.”

The researchers noted that “further well-designed studies are needed to explore the most effective clinical implementation conditions, including device type, duration, frequency, and time.”
 

Easy to use

Mariana Figueiro, PhD, professor and director of the Light and Health Research Center, department of population health medicine, Icahn School of Medicine at Mount Sinai, New York, said light is the “major stimulus for the circadian system, and a robust light-dark pattern daily (which can be given by light therapy during the day) improves sleep and behavior and reduces depression and agitation.”

Dr. Figueiro, who was not involved with the current study, noted that patients with dementia “have sleep issues, which can further affect their cognition; improvement in sleep leads to improvement in cognition,” and this may be an underlying mechanism associated with these results.

The clinical significance of the study “is that this is a nonpharmacological intervention and can be easily applied in the homes or controlled facilities, and it can be used with any other medication,” she pointed out.

“More importantly, sleep medications have negative side effects, so the use of nonpharmacological interventions improving sleep and cognition is great for clinical practice,” she added.

However, she took issue with the finding that phototherapy was not effective for depression and agitation, noting that there were “too few studies to say for sure that light therapy is ineffective at improving these outcomes.”

The research received no external funding. The authors and Dr. Figueiro disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Phototherapy is a safe, effective, noninvasive, and inexpensive way of boosting cognition for patients with dementia, new research suggests. It may be “one of the most promising interventions for improving core symptoms” of the disease.

A new meta-analysis shows that patients with dementia who received phototherapy experienced significant cognitive improvement, compared with those who received usual treatment. However, there were no differences between study groups in terms of improved depression, agitation, or sleep problems.

“Our meta-analysis indicates that phototherapy improved cognitive function in patients with dementia. ... This suggests that phototherapy may be one of the most promising non-pharmacological interventions for improving core symptoms of dementia,” wrote the investigators, led by Xinlian Lu, Peking University, Beijing.

The study was published online in Brain and Behavior.
 

A new treatment option?

“As drug treatment for dementia has limitations such as medical contraindications, limited efficacy, and adverse effects, nonpharmacological therapy has been increasingly regarded as a critical part of comprehensive dementia care,” the investigators noted.

Phototherapy, which utilizes full-spectrum bright light (usually > 600 lux) or wavelength-specific light (for example, blue-enriched or blue-green), is a “promising nonpharmacological therapy” that is noninvasive, inexpensive, and safe.

Most studies of phototherapy have focused on sleep. Findings have shown “high heterogeneity” among the interventions and the populations in the studies, and results have been “inconsistent.” In addition, the effect of phototherapy on cognitive function and behavioral and psychological symptoms of dementia (BPSD) “still need to be clarified.”

In the systematic review and meta-analysis, the investigators examined the effects of phototherapy on cognitive function, BPSD, and sleep in older adults with dementia.

They searched several databases for randomized controlled trials that investigated phototherapy interventions for elderly patients. The primary outcome was cognitive function, which was assessed via the Mini-Mental State Examination (MMSE).

Secondary outcomes included BPSD, including agitation, anxiety, irritability, depression, anxiety, and sleep disturbances, as assessed by the Cornell Scale for Depression in Dementia (CSDD), the Cohen-Mansfield Agitation Inventory (CMAI), the Neuropsychiatric Inventory (NPI), and measures of sleep, including total sleep time (TST), sleep efficiency (SE), and sleep disorders, as assessed by the Sleep Disorder Inventory (SDI).

To be included in the analysis, individual studies had to focus on elderly adults who had some form of dementia. In addition, a group receiving a phototherapy intervention had to be compared with a nonintervention group, and the study had to specify one of the above-defined outcomes.

The review included phototherapy interventions of all forms, frequencies, and durations, including use of bright light, LED light, and blue or blue-green light.
 

Regulating circadian rhythm

Twelve studies met the researchers’ criteria. They included a total of 766 patients with dementia – 426 in the intervention group and 340 in the control group. The mean ages ranged from 73.73 to 85.9 years, and there was a greater number of female than male participants.

Of the studies, seven employed routine daily light in the control group, while the others used either dim light (≤ 50 lux) or devices without light.

The researchers found “significant positive intervention effects” for global cognitive function. Improvements in postintervention MMSE scores differed significantly between the experimental groups and control groups (mean difference, 2.68; 95% confidence interval, 1.38-3.98; I2 = 0%).

No significant differences were found in the effects of intervention on depression symptoms, as evidenced in CSDD scores (MD, −0.70; 95% CI, −3.10 to 1.70; I² = 81%).

Among patients with higher CMAI scores, which indicate more severe agitation behaviors, there was a “trend of decreasing CMAI scores” after phototherapy (MD, −3.12; 95% CI, −8.05 to 1.82; I² = 0%). No significant difference in NPI scores was observed between the two groups.

Similarly, no significant difference was found between the two groups in TST, SE, or SDI scores.

Adverse effects were infrequent and were not severe. Two of the 426 patients in the intervention group experienced mild ocular irritation, and one experienced slight transient redness of the forehead.

Light “may compensate for the reduction in the visual sensory input of patients with dementia and stimulate specific neurons in the suprachiasmatic nucleus of the hypothalamus to regulate circadian rhythm,” the researchers suggested.

“As circadian rhythms are involved in optimal brain function, light supplementation may act on the synchronizing/phase-shifting effects of circadian rhythms to improve cognitive function,” they added.

They note that the light box is the “most commonly used device in phototherapy.” Light boxes provide full-spectrum bright light, usually greater than 2,500 lux. The duration is 30 minutes in the daytime, and treatment lasts 4-8 weeks.

The investigators cautioned that the light box should be placed 60 cm away from the patient or above the patient’s eye level. They said that a ceiling-mounted light is a “good choice” for providing whole-day phototherapy, since such lights do not interfere with the patient’s daily routine, reduce the demand on staff, and contribute to better adherence.

Phototherapy helmets and glasses are also available. These portable devices “allow for better control of light intensity and are ergonomic without interfering with patients’ normal activities.”

The researchers noted that “further well-designed studies are needed to explore the most effective clinical implementation conditions, including device type, duration, frequency, and time.”
 

Easy to use

Mariana Figueiro, PhD, professor and director of the Light and Health Research Center, department of population health medicine, Icahn School of Medicine at Mount Sinai, New York, said light is the “major stimulus for the circadian system, and a robust light-dark pattern daily (which can be given by light therapy during the day) improves sleep and behavior and reduces depression and agitation.”

Dr. Figueiro, who was not involved with the current study, noted that patients with dementia “have sleep issues, which can further affect their cognition; improvement in sleep leads to improvement in cognition,” and this may be an underlying mechanism associated with these results.

The clinical significance of the study “is that this is a nonpharmacological intervention and can be easily applied in the homes or controlled facilities, and it can be used with any other medication,” she pointed out.

“More importantly, sleep medications have negative side effects, so the use of nonpharmacological interventions improving sleep and cognition is great for clinical practice,” she added.

However, she took issue with the finding that phototherapy was not effective for depression and agitation, noting that there were “too few studies to say for sure that light therapy is ineffective at improving these outcomes.”

The research received no external funding. The authors and Dr. Figueiro disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Disordered sleep is associated with a significantly increased risk for stroke, new research shows.

Results of a large international study show stroke risk was more than three times higher in those who slept too little, more than twice as high in those who sleep too much, and two to three times higher in those with symptoms of severe obstructive sleep apnea.

The study also showed that the greater the number of sleep disorder symptoms, the greater the stroke risk. The 11% of study participants with five or more symptoms of disordered sleep had a fivefold increased risk for stroke.

Jupiterimages/Thinkstock

More symptoms, more risk

Previous research shows severe OSA doubles the risk of stroke and increases the chance of recurrent stroke. A 2019 study showed that people with insomnia had a small increased risk of stroke.

“Both snoring and extremes of sleep duration have been previously associated with an increased risk of stroke in observational research, but less is known about other symptoms of sleep impairment, with less consistent findings,” Dr. McCarthy said.

Prior studies have also generally come from a single geographic region, which Dr. McCarthy noted could limit their generalizability.

For this effort, investigators used data from 4,496 participants in INTERSTROKE, an international case-control study of risk factors for a first acute stroke. About half of the participants had a history of stroke.

Using information collected from a survey of sleep habits, researchers found an elevated stroke risk in those who received less than 5 hours of sleep per night (odds ratio, 3.15; 95% confidence interval, 2.09-4.76) or more than 9 hours of sleep per night (OR, 2.67; 95% CI, 1.89-3.78), compared with those who slept 7 hours a night.

Participants who took unplanned naps or naps lasting an hour or more (OR, 2.46; 95% CI, 1.69-3.57) and participants who reported poor quality sleep (OR,1.52; 95% CI, 1.32-1.75) were also at an increased risk for stroke.

Symptoms of OSA were also strongly associated with increased stroke risk, including snoring (OR, 1.91; 95% CI, 1.62-2.24), snorting (OR, 2.64; 95% CI, 2.17-3.20), and breathing cessation (OR, 2.87; 95% CI, 2.28-2.60).

Stroke risk increased as the number of sleep disturbance symptoms rose, with the greatest risk in the 11% of participants who had five or more symptoms (OR, 5.38; 95% CI, 4.03-7.18).

“This study finds an association between a broad range of sleep impairment symptoms and stroke, and a graded association with increasing symptoms, in an international setting,” Dr. McCarthy said.

Researchers aren’t sure what’s driving the higher stroke risk among people with sleep disturbances. Although the study did control for potential confounders, it wasn’t designed to get at what’s driving the association.

“Sleep disturbance may also have a bi-directional relationship with many stroke risk factors; for example, sleep disturbance may be a symptom of disease and exacerbate disease,” Dr. McCarthy said. “Future interventional studies are required to determine the true direction of the relationship.”
 

A marker of stroke risk

Daniel Lackland, DrPH, professor of neurology at the Medical University of South Carolina, Charleston, said the findings provide additional evidence of the link between sleep and stroke risk.

“The results confirm sleep disorders as a potential marker and part of the risk profile,” he said.

Collecting information about sleep using a validated assessment tool is an important piece of clinical care, Dr. Lackland said, especially among patients with other stroke risk factors.

One limitation of the study was that data on sleep was collected only at one point, and participants were not followed over time to see if changes in sleep affected stroke risk.

“This is an important point and should be a focus for future studies, as it is critical in the design of interventions,” Dr. Lackland said.

The INTERSTROKE study is funded by the Canadian Institutes of Health Research, Heart and Stroke Foundation of Canada, Canadian Stroke Network, Swedish Research Council, Swedish Heart and Lung Foundation, The Health & Medical Care Committee of the Regional Executive Board, Region Västra Götaland, Astra Zeneca, Boehringer Ingelheim (Canada), Pfizer (Canada), MERCK, Sharp and Dohme, Swedish Heart and Lung Foundation, U.K. Chest, and U.K. Heart and Stroke. Dr. McCarthy and Lackland report no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Disordered sleep is associated with a significantly increased risk for stroke, new research shows.

Results of a large international study show stroke risk was more than three times higher in those who slept too little, more than twice as high in those who sleep too much, and two to three times higher in those with symptoms of severe obstructive sleep apnea.

The study also showed that the greater the number of sleep disorder symptoms, the greater the stroke risk. The 11% of study participants with five or more symptoms of disordered sleep had a fivefold increased risk for stroke.

Jupiterimages/Thinkstock

More symptoms, more risk

Previous research shows severe OSA doubles the risk of stroke and increases the chance of recurrent stroke. A 2019 study showed that people with insomnia had a small increased risk of stroke.

“Both snoring and extremes of sleep duration have been previously associated with an increased risk of stroke in observational research, but less is known about other symptoms of sleep impairment, with less consistent findings,” Dr. McCarthy said.

Prior studies have also generally come from a single geographic region, which Dr. McCarthy noted could limit their generalizability.

For this effort, investigators used data from 4,496 participants in INTERSTROKE, an international case-control study of risk factors for a first acute stroke. About half of the participants had a history of stroke.

Using information collected from a survey of sleep habits, researchers found an elevated stroke risk in those who received less than 5 hours of sleep per night (odds ratio, 3.15; 95% confidence interval, 2.09-4.76) or more than 9 hours of sleep per night (OR, 2.67; 95% CI, 1.89-3.78), compared with those who slept 7 hours a night.

Participants who took unplanned naps or naps lasting an hour or more (OR, 2.46; 95% CI, 1.69-3.57) and participants who reported poor quality sleep (OR,1.52; 95% CI, 1.32-1.75) were also at an increased risk for stroke.

Symptoms of OSA were also strongly associated with increased stroke risk, including snoring (OR, 1.91; 95% CI, 1.62-2.24), snorting (OR, 2.64; 95% CI, 2.17-3.20), and breathing cessation (OR, 2.87; 95% CI, 2.28-2.60).

Stroke risk increased as the number of sleep disturbance symptoms rose, with the greatest risk in the 11% of participants who had five or more symptoms (OR, 5.38; 95% CI, 4.03-7.18).

“This study finds an association between a broad range of sleep impairment symptoms and stroke, and a graded association with increasing symptoms, in an international setting,” Dr. McCarthy said.

Researchers aren’t sure what’s driving the higher stroke risk among people with sleep disturbances. Although the study did control for potential confounders, it wasn’t designed to get at what’s driving the association.

“Sleep disturbance may also have a bi-directional relationship with many stroke risk factors; for example, sleep disturbance may be a symptom of disease and exacerbate disease,” Dr. McCarthy said. “Future interventional studies are required to determine the true direction of the relationship.”
 

A marker of stroke risk

Daniel Lackland, DrPH, professor of neurology at the Medical University of South Carolina, Charleston, said the findings provide additional evidence of the link between sleep and stroke risk.

“The results confirm sleep disorders as a potential marker and part of the risk profile,” he said.

Collecting information about sleep using a validated assessment tool is an important piece of clinical care, Dr. Lackland said, especially among patients with other stroke risk factors.

One limitation of the study was that data on sleep was collected only at one point, and participants were not followed over time to see if changes in sleep affected stroke risk.

“This is an important point and should be a focus for future studies, as it is critical in the design of interventions,” Dr. Lackland said.

The INTERSTROKE study is funded by the Canadian Institutes of Health Research, Heart and Stroke Foundation of Canada, Canadian Stroke Network, Swedish Research Council, Swedish Heart and Lung Foundation, The Health & Medical Care Committee of the Regional Executive Board, Region Västra Götaland, Astra Zeneca, Boehringer Ingelheim (Canada), Pfizer (Canada), MERCK, Sharp and Dohme, Swedish Heart and Lung Foundation, U.K. Chest, and U.K. Heart and Stroke. Dr. McCarthy and Lackland report no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Disordered sleep is associated with a significantly increased risk for stroke, new research shows.

Results of a large international study show stroke risk was more than three times higher in those who slept too little, more than twice as high in those who sleep too much, and two to three times higher in those with symptoms of severe obstructive sleep apnea.

The study also showed that the greater the number of sleep disorder symptoms, the greater the stroke risk. The 11% of study participants with five or more symptoms of disordered sleep had a fivefold increased risk for stroke.

Jupiterimages/Thinkstock

More symptoms, more risk

Previous research shows severe OSA doubles the risk of stroke and increases the chance of recurrent stroke. A 2019 study showed that people with insomnia had a small increased risk of stroke.

“Both snoring and extremes of sleep duration have been previously associated with an increased risk of stroke in observational research, but less is known about other symptoms of sleep impairment, with less consistent findings,” Dr. McCarthy said.

Prior studies have also generally come from a single geographic region, which Dr. McCarthy noted could limit their generalizability.

For this effort, investigators used data from 4,496 participants in INTERSTROKE, an international case-control study of risk factors for a first acute stroke. About half of the participants had a history of stroke.

Using information collected from a survey of sleep habits, researchers found an elevated stroke risk in those who received less than 5 hours of sleep per night (odds ratio, 3.15; 95% confidence interval, 2.09-4.76) or more than 9 hours of sleep per night (OR, 2.67; 95% CI, 1.89-3.78), compared with those who slept 7 hours a night.

Participants who took unplanned naps or naps lasting an hour or more (OR, 2.46; 95% CI, 1.69-3.57) and participants who reported poor quality sleep (OR,1.52; 95% CI, 1.32-1.75) were also at an increased risk for stroke.

Symptoms of OSA were also strongly associated with increased stroke risk, including snoring (OR, 1.91; 95% CI, 1.62-2.24), snorting (OR, 2.64; 95% CI, 2.17-3.20), and breathing cessation (OR, 2.87; 95% CI, 2.28-2.60).

Stroke risk increased as the number of sleep disturbance symptoms rose, with the greatest risk in the 11% of participants who had five or more symptoms (OR, 5.38; 95% CI, 4.03-7.18).

“This study finds an association between a broad range of sleep impairment symptoms and stroke, and a graded association with increasing symptoms, in an international setting,” Dr. McCarthy said.

Researchers aren’t sure what’s driving the higher stroke risk among people with sleep disturbances. Although the study did control for potential confounders, it wasn’t designed to get at what’s driving the association.

“Sleep disturbance may also have a bi-directional relationship with many stroke risk factors; for example, sleep disturbance may be a symptom of disease and exacerbate disease,” Dr. McCarthy said. “Future interventional studies are required to determine the true direction of the relationship.”
 

A marker of stroke risk

Daniel Lackland, DrPH, professor of neurology at the Medical University of South Carolina, Charleston, said the findings provide additional evidence of the link between sleep and stroke risk.

“The results confirm sleep disorders as a potential marker and part of the risk profile,” he said.

Collecting information about sleep using a validated assessment tool is an important piece of clinical care, Dr. Lackland said, especially among patients with other stroke risk factors.

One limitation of the study was that data on sleep was collected only at one point, and participants were not followed over time to see if changes in sleep affected stroke risk.

“This is an important point and should be a focus for future studies, as it is critical in the design of interventions,” Dr. Lackland said.

The INTERSTROKE study is funded by the Canadian Institutes of Health Research, Heart and Stroke Foundation of Canada, Canadian Stroke Network, Swedish Research Council, Swedish Heart and Lung Foundation, The Health & Medical Care Committee of the Regional Executive Board, Region Västra Götaland, Astra Zeneca, Boehringer Ingelheim (Canada), Pfizer (Canada), MERCK, Sharp and Dohme, Swedish Heart and Lung Foundation, U.K. Chest, and U.K. Heart and Stroke. Dr. McCarthy and Lackland report no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Although I have worked with depressed patients for many years, I have come to realize that it is now unfortunately an essential primary care skill to have nuanced conversations about reducing access to and use of deadly weapons (lethal means) for all families.

Firearms are now the leading cause of death for U.S. children and youth aged 1-24 years, an increase of 29.5% from 2019 to 2020. Among all youth firearm deaths, homicides (58%), suicides (37%), unintentional shootings (2%), and legal intervention (1%) were causes. These horrific numbers do not even include almost 400,000 child ED visits from 2010 to 2019 for nonfatal firearm injuries that were unintentional (39.4%), assault-related (37.7%), or self-harm (1.7%).

Accidental injury from firearms is greater when the weapon is a handgun or pistol as these are small enough to be fired by a 2-year-old, more likely to be stored loaded with ammunition as “self-protection,” and less likely to be in a gun storage case.

While an overall decline in gun ownership has occurred in homes with children ages 1-5, the proportion of weapons that are handguns has actually increased, posing higher danger to the family itself. We can’t assume hiding a weapon is ever enough as children often know the location of guns and their keys or lock codes.

Many Americans fear for their safety, have doubts about policing as protective, and strongly assert the need to protect themselves. While asking about guns in the home is universally recommended, these beliefs need to be taken into account in the discussion. It is also important to speak with the firearm owner, most often the father. We might ask, “Do you feel that you need a firearm in your home to feel safe?” as a way to nonjudgmentally acknowledge their beliefs. Because women are more likely to be killed by their spouses than by all other types of assailants combined, we can ask, “What dangers worry you the most?” and “Do you feel safe in your current and any past relationships?” If their answer is worrisome, the discussion must first turn to dealing with the family situation. If the perceived threat is outside the family, we can inform families that having a gun in evidence in the home greatly increases the risk of being hurt by an assailant as well as risk for child injury and death. We might ask, “Can you think of any other ways to protect your home (for example, alarm system, outdoor lighting, dog, or pepper spray)?”

If parents insist on keeping a gun, we can strongly and directly recommend that all firearms be stored locked, unloaded, and with ammunition locked and stored separately. We can provide information on such locking and storage options. Programs in which information on devices to disable the gun were provided – such as cables to pass through the chamber or trigger locks – have shown big increases in safe gun storage. It may be worth saying/posting information on the Child Access Prevention (CAP) laws, enacted by many states, making adults owning firearms that are not stored safely unloaded legally responsible for any resulting injuries or deaths. Such laws have reduced injuries of both children and adults by 30%-40%, unintentional gun deaths by 23%, and gun suicides by 11% (for 14- to 17-year-olds).

If the reason for owning a gun is for hunting, the owner is more likely to have had firearm safety training and use a long gun. Long guns are more difficult for a child. Discussing safe hunting gun storage is still worth recommending, as is removing any handguns they may own as these are most dangerous.

Removing or securing firearms is important for everyone’s safety but it is an essential and perhaps more difficult topic of discussion when a child is at risk for suicide or harming others. We need to consider some crucial facts about completed suicide, now the leading cause of death in children and adolescents and largely from guns. Most suicide attempts occur within 10 minutes of having a wave of suicidal thoughts. These waves of thoughts may be acted upon immediately when lethal means are available, with guns by far the most likely to result in death. It is therefore critical to assess access and counsel about lethal means in every family with a child reporting thoughts of killing themselves or others, or a history of violence or substance use. Even without imminent risk of self-harm, we can start a discussion about securing lethal means by saying, “It’s like wearing a seatbelt; you don’t expect a car crash, but if one happens, wearing a safety belt can greatly reduce injury. Guns are the most frequent cause of dying, so let’s make a plan to reduce access to those.”

Creating a written plan to deal with waves of suicidal thoughts is the basis of a Safety Plan. We can accurately remind families and youth that “When someone is struggling like this, sometimes suicidal feelings can show up and get worse fast. There are steps I routinely recommend to make things safer at home.”

It is important to assess the presence of guns in the primary home and other places the child spends time even if we have asked in the past, as things change. If firearms are present, even if locked up appropriately, when a child is having suicidal thoughts we can say, “What some gun owners in your situation do is store weapons elsewhere temporarily with someone they trust, at a self-storage unit, gun or pawn shop, or police department. I’d like to talk over storage options like that with you.” If the child themself owns the firearm, they need to agree with a removal or lock up plan for giving up their access.

If the gun owner is unwilling to remove firearms, even temporarily, we can ask them to lock them up separately from ammunition, a move that alone reduces danger a lot, and ensure the child has no access to the keys or combination. Better yet, we can ask, “Would you be willing to ask someone who doesn’t live in your home to hold the keys or to change the combination temporarily or at least store the ammunition?” They could also remove from the home a critical component of the gun so that it can’t fire, such as the slide or firing pin. If even those steps are not accepted, we can ask, “What other options would you be willing to consider to increase your child’s safety, at least until s/he is doing better?”

Whatever plan we negotiate with the family, as for any health behavior change strategy, it is more likely to be implemented if we summarize the specifics, write them down, and set a time-frame for carrying it out. We might say, “Let’s review who’s doing what and when: Dad will take the guns to his uncle’s house tomorrow and meanwhile, he will put them in the gun safe.” A follow-up call or contact soon, a key part of management of suicidal ideation, also signals how strongly we care about these safety measures and has been shown to increase implementation. We might call to say, “I wanted to check in and see how [you/your child] is doing and also ask how the plan is going that we talked about for gun storage.”

Discussions about firearms can spark strong emotions, especially if the family suspects political motivations. The Florida law prohibiting health care providers from discussing guns with patients was overturned but the thinking remains and may give us pause before having these important conversations. First of all, we need to stay calm and be prepared with key facts. The “sandwich” method is a useful approach to reduce resistance: start with something you can agree on (such as “What we hear on the news can make us all scared about safety”); then add the facts we want to convey (such as “You are actually less likely to get hurt in a break-in if you do not have a gun”); then conclude with a positive (such as “I can see that you are giving a lot of thought to how to keep your family safe”). Families generally trust our intentions and knowledge and appreciate rather than resent safety counseling when it is given in a nonjudgmental manner. Because we are protectors of child health, firearm safety must be an essential part of our anticipatory guidance.

Dr. Howard is assistant professor of pediatrics at Johns Hopkins University, Baltimore, and creator of CHADIS (www.CHADIS.com). She had no other relevant disclosures. Dr. Howard’s contribution to this publication was as a paid expert to MDedge News. E-mail her at [email protected].

*Wording suggestions adapted from https://www.hsph.harvard.edu/means-matter/recommendations/clinicians.

Although I have worked with depressed patients for many years, I have come to realize that it is now unfortunately an essential primary care skill to have nuanced conversations about reducing access to and use of deadly weapons (lethal means) for all families.

Firearms are now the leading cause of death for U.S. children and youth aged 1-24 years, an increase of 29.5% from 2019 to 2020. Among all youth firearm deaths, homicides (58%), suicides (37%), unintentional shootings (2%), and legal intervention (1%) were causes. These horrific numbers do not even include almost 400,000 child ED visits from 2010 to 2019 for nonfatal firearm injuries that were unintentional (39.4%), assault-related (37.7%), or self-harm (1.7%).

Accidental injury from firearms is greater when the weapon is a handgun or pistol as these are small enough to be fired by a 2-year-old, more likely to be stored loaded with ammunition as “self-protection,” and less likely to be in a gun storage case.

While an overall decline in gun ownership has occurred in homes with children ages 1-5, the proportion of weapons that are handguns has actually increased, posing higher danger to the family itself. We can’t assume hiding a weapon is ever enough as children often know the location of guns and their keys or lock codes.

Many Americans fear for their safety, have doubts about policing as protective, and strongly assert the need to protect themselves. While asking about guns in the home is universally recommended, these beliefs need to be taken into account in the discussion. It is also important to speak with the firearm owner, most often the father. We might ask, “Do you feel that you need a firearm in your home to feel safe?” as a way to nonjudgmentally acknowledge their beliefs. Because women are more likely to be killed by their spouses than by all other types of assailants combined, we can ask, “What dangers worry you the most?” and “Do you feel safe in your current and any past relationships?” If their answer is worrisome, the discussion must first turn to dealing with the family situation. If the perceived threat is outside the family, we can inform families that having a gun in evidence in the home greatly increases the risk of being hurt by an assailant as well as risk for child injury and death. We might ask, “Can you think of any other ways to protect your home (for example, alarm system, outdoor lighting, dog, or pepper spray)?”

If parents insist on keeping a gun, we can strongly and directly recommend that all firearms be stored locked, unloaded, and with ammunition locked and stored separately. We can provide information on such locking and storage options. Programs in which information on devices to disable the gun were provided – such as cables to pass through the chamber or trigger locks – have shown big increases in safe gun storage. It may be worth saying/posting information on the Child Access Prevention (CAP) laws, enacted by many states, making adults owning firearms that are not stored safely unloaded legally responsible for any resulting injuries or deaths. Such laws have reduced injuries of both children and adults by 30%-40%, unintentional gun deaths by 23%, and gun suicides by 11% (for 14- to 17-year-olds).

If the reason for owning a gun is for hunting, the owner is more likely to have had firearm safety training and use a long gun. Long guns are more difficult for a child. Discussing safe hunting gun storage is still worth recommending, as is removing any handguns they may own as these are most dangerous.

Removing or securing firearms is important for everyone’s safety but it is an essential and perhaps more difficult topic of discussion when a child is at risk for suicide or harming others. We need to consider some crucial facts about completed suicide, now the leading cause of death in children and adolescents and largely from guns. Most suicide attempts occur within 10 minutes of having a wave of suicidal thoughts. These waves of thoughts may be acted upon immediately when lethal means are available, with guns by far the most likely to result in death. It is therefore critical to assess access and counsel about lethal means in every family with a child reporting thoughts of killing themselves or others, or a history of violence or substance use. Even without imminent risk of self-harm, we can start a discussion about securing lethal means by saying, “It’s like wearing a seatbelt; you don’t expect a car crash, but if one happens, wearing a safety belt can greatly reduce injury. Guns are the most frequent cause of dying, so let’s make a plan to reduce access to those.”

Creating a written plan to deal with waves of suicidal thoughts is the basis of a Safety Plan. We can accurately remind families and youth that “When someone is struggling like this, sometimes suicidal feelings can show up and get worse fast. There are steps I routinely recommend to make things safer at home.”

It is important to assess the presence of guns in the primary home and other places the child spends time even if we have asked in the past, as things change. If firearms are present, even if locked up appropriately, when a child is having suicidal thoughts we can say, “What some gun owners in your situation do is store weapons elsewhere temporarily with someone they trust, at a self-storage unit, gun or pawn shop, or police department. I’d like to talk over storage options like that with you.” If the child themself owns the firearm, they need to agree with a removal or lock up plan for giving up their access.

If the gun owner is unwilling to remove firearms, even temporarily, we can ask them to lock them up separately from ammunition, a move that alone reduces danger a lot, and ensure the child has no access to the keys or combination. Better yet, we can ask, “Would you be willing to ask someone who doesn’t live in your home to hold the keys or to change the combination temporarily or at least store the ammunition?” They could also remove from the home a critical component of the gun so that it can’t fire, such as the slide or firing pin. If even those steps are not accepted, we can ask, “What other options would you be willing to consider to increase your child’s safety, at least until s/he is doing better?”

Whatever plan we negotiate with the family, as for any health behavior change strategy, it is more likely to be implemented if we summarize the specifics, write them down, and set a time-frame for carrying it out. We might say, “Let’s review who’s doing what and when: Dad will take the guns to his uncle’s house tomorrow and meanwhile, he will put them in the gun safe.” A follow-up call or contact soon, a key part of management of suicidal ideation, also signals how strongly we care about these safety measures and has been shown to increase implementation. We might call to say, “I wanted to check in and see how [you/your child] is doing and also ask how the plan is going that we talked about for gun storage.”

Discussions about firearms can spark strong emotions, especially if the family suspects political motivations. The Florida law prohibiting health care providers from discussing guns with patients was overturned but the thinking remains and may give us pause before having these important conversations. First of all, we need to stay calm and be prepared with key facts. The “sandwich” method is a useful approach to reduce resistance: start with something you can agree on (such as “What we hear on the news can make us all scared about safety”); then add the facts we want to convey (such as “You are actually less likely to get hurt in a break-in if you do not have a gun”); then conclude with a positive (such as “I can see that you are giving a lot of thought to how to keep your family safe”). Families generally trust our intentions and knowledge and appreciate rather than resent safety counseling when it is given in a nonjudgmental manner. Because we are protectors of child health, firearm safety must be an essential part of our anticipatory guidance.

Dr. Howard is assistant professor of pediatrics at Johns Hopkins University, Baltimore, and creator of CHADIS (www.CHADIS.com). She had no other relevant disclosures. Dr. Howard’s contribution to this publication was as a paid expert to MDedge News. E-mail her at [email protected].

*Wording suggestions adapted from https://www.hsph.harvard.edu/means-matter/recommendations/clinicians.

Although I have worked with depressed patients for many years, I have come to realize that it is now unfortunately an essential primary care skill to have nuanced conversations about reducing access to and use of deadly weapons (lethal means) for all families.

Firearms are now the leading cause of death for U.S. children and youth aged 1-24 years, an increase of 29.5% from 2019 to 2020. Among all youth firearm deaths, homicides (58%), suicides (37%), unintentional shootings (2%), and legal intervention (1%) were causes. These horrific numbers do not even include almost 400,000 child ED visits from 2010 to 2019 for nonfatal firearm injuries that were unintentional (39.4%), assault-related (37.7%), or self-harm (1.7%).

Accidental injury from firearms is greater when the weapon is a handgun or pistol as these are small enough to be fired by a 2-year-old, more likely to be stored loaded with ammunition as “self-protection,” and less likely to be in a gun storage case.

While an overall decline in gun ownership has occurred in homes with children ages 1-5, the proportion of weapons that are handguns has actually increased, posing higher danger to the family itself. We can’t assume hiding a weapon is ever enough as children often know the location of guns and their keys or lock codes.

Many Americans fear for their safety, have doubts about policing as protective, and strongly assert the need to protect themselves. While asking about guns in the home is universally recommended, these beliefs need to be taken into account in the discussion. It is also important to speak with the firearm owner, most often the father. We might ask, “Do you feel that you need a firearm in your home to feel safe?” as a way to nonjudgmentally acknowledge their beliefs. Because women are more likely to be killed by their spouses than by all other types of assailants combined, we can ask, “What dangers worry you the most?” and “Do you feel safe in your current and any past relationships?” If their answer is worrisome, the discussion must first turn to dealing with the family situation. If the perceived threat is outside the family, we can inform families that having a gun in evidence in the home greatly increases the risk of being hurt by an assailant as well as risk for child injury and death. We might ask, “Can you think of any other ways to protect your home (for example, alarm system, outdoor lighting, dog, or pepper spray)?”

If parents insist on keeping a gun, we can strongly and directly recommend that all firearms be stored locked, unloaded, and with ammunition locked and stored separately. We can provide information on such locking and storage options. Programs in which information on devices to disable the gun were provided – such as cables to pass through the chamber or trigger locks – have shown big increases in safe gun storage. It may be worth saying/posting information on the Child Access Prevention (CAP) laws, enacted by many states, making adults owning firearms that are not stored safely unloaded legally responsible for any resulting injuries or deaths. Such laws have reduced injuries of both children and adults by 30%-40%, unintentional gun deaths by 23%, and gun suicides by 11% (for 14- to 17-year-olds).

If the reason for owning a gun is for hunting, the owner is more likely to have had firearm safety training and use a long gun. Long guns are more difficult for a child. Discussing safe hunting gun storage is still worth recommending, as is removing any handguns they may own as these are most dangerous.

Removing or securing firearms is important for everyone’s safety but it is an essential and perhaps more difficult topic of discussion when a child is at risk for suicide or harming others. We need to consider some crucial facts about completed suicide, now the leading cause of death in children and adolescents and largely from guns. Most suicide attempts occur within 10 minutes of having a wave of suicidal thoughts. These waves of thoughts may be acted upon immediately when lethal means are available, with guns by far the most likely to result in death. It is therefore critical to assess access and counsel about lethal means in every family with a child reporting thoughts of killing themselves or others, or a history of violence or substance use. Even without imminent risk of self-harm, we can start a discussion about securing lethal means by saying, “It’s like wearing a seatbelt; you don’t expect a car crash, but if one happens, wearing a safety belt can greatly reduce injury. Guns are the most frequent cause of dying, so let’s make a plan to reduce access to those.”

Creating a written plan to deal with waves of suicidal thoughts is the basis of a Safety Plan. We can accurately remind families and youth that “When someone is struggling like this, sometimes suicidal feelings can show up and get worse fast. There are steps I routinely recommend to make things safer at home.”

It is important to assess the presence of guns in the primary home and other places the child spends time even if we have asked in the past, as things change. If firearms are present, even if locked up appropriately, when a child is having suicidal thoughts we can say, “What some gun owners in your situation do is store weapons elsewhere temporarily with someone they trust, at a self-storage unit, gun or pawn shop, or police department. I’d like to talk over storage options like that with you.” If the child themself owns the firearm, they need to agree with a removal or lock up plan for giving up their access.

If the gun owner is unwilling to remove firearms, even temporarily, we can ask them to lock them up separately from ammunition, a move that alone reduces danger a lot, and ensure the child has no access to the keys or combination. Better yet, we can ask, “Would you be willing to ask someone who doesn’t live in your home to hold the keys or to change the combination temporarily or at least store the ammunition?” They could also remove from the home a critical component of the gun so that it can’t fire, such as the slide or firing pin. If even those steps are not accepted, we can ask, “What other options would you be willing to consider to increase your child’s safety, at least until s/he is doing better?”

Whatever plan we negotiate with the family, as for any health behavior change strategy, it is more likely to be implemented if we summarize the specifics, write them down, and set a time-frame for carrying it out. We might say, “Let’s review who’s doing what and when: Dad will take the guns to his uncle’s house tomorrow and meanwhile, he will put them in the gun safe.” A follow-up call or contact soon, a key part of management of suicidal ideation, also signals how strongly we care about these safety measures and has been shown to increase implementation. We might call to say, “I wanted to check in and see how [you/your child] is doing and also ask how the plan is going that we talked about for gun storage.”

Discussions about firearms can spark strong emotions, especially if the family suspects political motivations. The Florida law prohibiting health care providers from discussing guns with patients was overturned but the thinking remains and may give us pause before having these important conversations. First of all, we need to stay calm and be prepared with key facts. The “sandwich” method is a useful approach to reduce resistance: start with something you can agree on (such as “What we hear on the news can make us all scared about safety”); then add the facts we want to convey (such as “You are actually less likely to get hurt in a break-in if you do not have a gun”); then conclude with a positive (such as “I can see that you are giving a lot of thought to how to keep your family safe”). Families generally trust our intentions and knowledge and appreciate rather than resent safety counseling when it is given in a nonjudgmental manner. Because we are protectors of child health, firearm safety must be an essential part of our anticipatory guidance.

Dr. Howard is assistant professor of pediatrics at Johns Hopkins University, Baltimore, and creator of CHADIS (www.CHADIS.com). She had no other relevant disclosures. Dr. Howard’s contribution to this publication was as a paid expert to MDedge News. E-mail her at [email protected].

*Wording suggestions adapted from https://www.hsph.harvard.edu/means-matter/recommendations/clinicians.

Medicare beneficiaries living in the Mississippi–Ohio River valley had a higher risk of developing Parkinson’s disease, compared with other regions of the United States, according to findings from a study that was released ahead of its scheduled presentation at the annual meeting of the American Academy of Neurology.

The association was attributed to concentrations of particulate matter (PM) _2.5 in the Mississippi–Ohio River valley, which was on average higher than in other areas, but that didn’t entirely explain the increase in Parkinson’s disease in that region, Brittany Krzyzanowski, PhD, a postdoctoral research fellow in the neuroepidemiology research program of the department of neurology at Barrow Neurological Institute, Dignity Health St. Joseph’s Hospital and Medical Center, Phoenix, said in an interview.

Barrow Neurological Institute

“This study revealed Parkinson’s disease hot spots in the Mississippi–Ohio River valley, a region that has some of the highest levels of air pollution in the nation,” she said, “but we also still find a relationship between air pollution and Parkinson’s risk in the regions in the western half of the United States where Parkinson’s disease and air pollution levels are relatively low.”

Dr. Krzyzanowski and colleagues evaluated 22,546,965 Medicare beneficiaries in 2009, using a multimethod approach that included geospatial analytical techniques to categorize their exposure to PM_2.5 based on age, sex, race, smoking status, and health care usage. The researchers also performed individual-level case-control analysis to assess PM_2.5 results at the county level. The Medicare beneficiaries were grouped according to average exposure, with the lowest group having an average annual exposure of 5 mcg/m³ and the group with the highest exposure having an average annual exposure of 19 mcg/m³.

In total, researchers identified 83,674 Medicare beneficiaries with incident Parkinson’s disease, with 434 new cases per 100,000 people in the highest exposure group, compared with 359 new cases per 100,000 people in the lowest-exposure group. The relative risk for Parkinson’s disease increased in the highest quartile of PM_2.5 by 25%, compared with the lowest quartile after adjusting for factors such as age, smoking status, and health care usage (95% confidence interval, 20%–29%).

The results showed the nationwide average annual PM_2.5 was associated with incident Parkinson’s disease, and the Rocky Mountain region carried a strong association between PM_2.5 and Parkson’s disease with a 16% increase in risk per level of exposure to PM_2.5. While the Mississippi-Ohio River valley was also associated with Parkinson’s disease, there was a weaker association between PM_2.5 and Parkinson’s disease, which the researchers attributed to a “ceiling effect” of PM_2.5 between approximately 12-19 mcg/m³.

Dr. Krzyzanowski said that use of a large-population-based dataset and high-resolution location data were major strengths of the study. “Having this level of information leaves less room for uncertainty in our measures and analyses,” she said. “Our study also leveraged innovative geographic information systems which allowed us to refine local patterns of disease by using population behavior and demographic information (such as smoking and age) to ensure that we could provide the most accurate map representation available to date.”
 

A focus on air pollution

Existing research in examining the etiology of Parkinson’s mainly focused on exposure to pesticides,* Dr. Krzyzanowski explained, and “consists of studies using relatively small populations and low-resolution air pollution data.” Genetics is another possible cause, she noted, but only explains some Parkinson’s disease cases.

“Our work suggests that we should also be looking at air pollution as a contributor in the development of Parkinson’s disease,” she said.

Ray Dorsey, MD, professor of neurology at the University of Rochester (N.Y.), who was not involved with the study, said that evidence is mounting that “air pollution may be an important causal factor in Parkinson’s and especially Alzheimer’s disease.”

“This study by a well-regarded group of researchers adds epidemiological evidence for that association,” he said. Another strength is that the study was conducted in the United States, as many epidemiological studies evaluating air pollution and Parkinson’s disease have been performed outside the country because of “a dearth of reliable data sources.”

“This study, along with others, suggest that some of the important environmental toxicants tied to brain disease may be inhaled,” Dr. Dorsey said. “The nose may be the front door to the brain.”

Dr. Krzyzanowski said the next step in their research is further examination of different types of air pollution. “Air pollution contains a variety of toxic components which vary from region to region. Understanding the different components in air pollution and how they interact with climate, temperature, and topography could help explain the regional differences we observed.”

One potential limitation in the study is a lag between air pollution exposure and development of Parkinson’s disease, Dr. Dorsey noted.

“Here, it looks like (but I am not certain) that the investigators looked at current air pollution levels and new cases of Parkinson’s. Ideally, for incident cases of Parkinson’s disease, we would want to know historical data on exposure to air pollution,” he said.

Future studies should include prospective evaluation of adults as well as babies and children who have been exposed to both high and low levels of air pollution. That kind of study “would be incredibly valuable for determining the role of an important environmental toxicant in many brain diseases, including stroke, Alzheimer’s, and Parkinson’s,” he said.

Dr. Krzyzanowski and Dr. Dorsey reported no relevant financial disclosures. This study was supported by grants from the Department of Defense, the National Institute of Environmental Health Sciences, and The Michael J. Fox Foundation for Parkinson’s Research.

*Correction, 4/14/23: An earlier version of this article mischaracterized the disease that was the subject of this research.

Medicare beneficiaries living in the Mississippi–Ohio River valley had a higher risk of developing Parkinson’s disease, compared with other regions of the United States, according to findings from a study that was released ahead of its scheduled presentation at the annual meeting of the American Academy of Neurology.

The association was attributed to concentrations of particulate matter (PM) _2.5 in the Mississippi–Ohio River valley, which was on average higher than in other areas, but that didn’t entirely explain the increase in Parkinson’s disease in that region, Brittany Krzyzanowski, PhD, a postdoctoral research fellow in the neuroepidemiology research program of the department of neurology at Barrow Neurological Institute, Dignity Health St. Joseph’s Hospital and Medical Center, Phoenix, said in an interview.

Barrow Neurological Institute

“This study revealed Parkinson’s disease hot spots in the Mississippi–Ohio River valley, a region that has some of the highest levels of air pollution in the nation,” she said, “but we also still find a relationship between air pollution and Parkinson’s risk in the regions in the western half of the United States where Parkinson’s disease and air pollution levels are relatively low.”

Dr. Krzyzanowski and colleagues evaluated 22,546,965 Medicare beneficiaries in 2009, using a multimethod approach that included geospatial analytical techniques to categorize their exposure to PM_2.5 based on age, sex, race, smoking status, and health care usage. The researchers also performed individual-level case-control analysis to assess PM_2.5 results at the county level. The Medicare beneficiaries were grouped according to average exposure, with the lowest group having an average annual exposure of 5 mcg/m³ and the group with the highest exposure having an average annual exposure of 19 mcg/m³.

In total, researchers identified 83,674 Medicare beneficiaries with incident Parkinson’s disease, with 434 new cases per 100,000 people in the highest exposure group, compared with 359 new cases per 100,000 people in the lowest-exposure group. The relative risk for Parkinson’s disease increased in the highest quartile of PM_2.5 by 25%, compared with the lowest quartile after adjusting for factors such as age, smoking status, and health care usage (95% confidence interval, 20%–29%).

The results showed the nationwide average annual PM_2.5 was associated with incident Parkinson’s disease, and the Rocky Mountain region carried a strong association between PM_2.5 and Parkson’s disease with a 16% increase in risk per level of exposure to PM_2.5. While the Mississippi-Ohio River valley was also associated with Parkinson’s disease, there was a weaker association between PM_2.5 and Parkinson’s disease, which the researchers attributed to a “ceiling effect” of PM_2.5 between approximately 12-19 mcg/m³.

Dr. Krzyzanowski said that use of a large-population-based dataset and high-resolution location data were major strengths of the study. “Having this level of information leaves less room for uncertainty in our measures and analyses,” she said. “Our study also leveraged innovative geographic information systems which allowed us to refine local patterns of disease by using population behavior and demographic information (such as smoking and age) to ensure that we could provide the most accurate map representation available to date.”
 

A focus on air pollution

Existing research in examining the etiology of Parkinson’s mainly focused on exposure to pesticides,* Dr. Krzyzanowski explained, and “consists of studies using relatively small populations and low-resolution air pollution data.” Genetics is another possible cause, she noted, but only explains some Parkinson’s disease cases.

“Our work suggests that we should also be looking at air pollution as a contributor in the development of Parkinson’s disease,” she said.

Ray Dorsey, MD, professor of neurology at the University of Rochester (N.Y.), who was not involved with the study, said that evidence is mounting that “air pollution may be an important causal factor in Parkinson’s and especially Alzheimer’s disease.”

“This study by a well-regarded group of researchers adds epidemiological evidence for that association,” he said. Another strength is that the study was conducted in the United States, as many epidemiological studies evaluating air pollution and Parkinson’s disease have been performed outside the country because of “a dearth of reliable data sources.”

“This study, along with others, suggest that some of the important environmental toxicants tied to brain disease may be inhaled,” Dr. Dorsey said. “The nose may be the front door to the brain.”

Dr. Krzyzanowski said the next step in their research is further examination of different types of air pollution. “Air pollution contains a variety of toxic components which vary from region to region. Understanding the different components in air pollution and how they interact with climate, temperature, and topography could help explain the regional differences we observed.”

One potential limitation in the study is a lag between air pollution exposure and development of Parkinson’s disease, Dr. Dorsey noted.

“Here, it looks like (but I am not certain) that the investigators looked at current air pollution levels and new cases of Parkinson’s. Ideally, for incident cases of Parkinson’s disease, we would want to know historical data on exposure to air pollution,” he said.

Future studies should include prospective evaluation of adults as well as babies and children who have been exposed to both high and low levels of air pollution. That kind of study “would be incredibly valuable for determining the role of an important environmental toxicant in many brain diseases, including stroke, Alzheimer’s, and Parkinson’s,” he said.

Dr. Krzyzanowski and Dr. Dorsey reported no relevant financial disclosures. This study was supported by grants from the Department of Defense, the National Institute of Environmental Health Sciences, and The Michael J. Fox Foundation for Parkinson’s Research.

*Correction, 4/14/23: An earlier version of this article mischaracterized the disease that was the subject of this research.

Medicare beneficiaries living in the Mississippi–Ohio River valley had a higher risk of developing Parkinson’s disease, compared with other regions of the United States, according to findings from a study that was released ahead of its scheduled presentation at the annual meeting of the American Academy of Neurology.

The association was attributed to concentrations of particulate matter (PM) _2.5 in the Mississippi–Ohio River valley, which was on average higher than in other areas, but that didn’t entirely explain the increase in Parkinson’s disease in that region, Brittany Krzyzanowski, PhD, a postdoctoral research fellow in the neuroepidemiology research program of the department of neurology at Barrow Neurological Institute, Dignity Health St. Joseph’s Hospital and Medical Center, Phoenix, said in an interview.

Barrow Neurological Institute

“This study revealed Parkinson’s disease hot spots in the Mississippi–Ohio River valley, a region that has some of the highest levels of air pollution in the nation,” she said, “but we also still find a relationship between air pollution and Parkinson’s risk in the regions in the western half of the United States where Parkinson’s disease and air pollution levels are relatively low.”

Dr. Krzyzanowski and colleagues evaluated 22,546,965 Medicare beneficiaries in 2009, using a multimethod approach that included geospatial analytical techniques to categorize their exposure to PM_2.5 based on age, sex, race, smoking status, and health care usage. The researchers also performed individual-level case-control analysis to assess PM_2.5 results at the county level. The Medicare beneficiaries were grouped according to average exposure, with the lowest group having an average annual exposure of 5 mcg/m³ and the group with the highest exposure having an average annual exposure of 19 mcg/m³.

In total, researchers identified 83,674 Medicare beneficiaries with incident Parkinson’s disease, with 434 new cases per 100,000 people in the highest exposure group, compared with 359 new cases per 100,000 people in the lowest-exposure group. The relative risk for Parkinson’s disease increased in the highest quartile of PM_2.5 by 25%, compared with the lowest quartile after adjusting for factors such as age, smoking status, and health care usage (95% confidence interval, 20%–29%).

The results showed the nationwide average annual PM_2.5 was associated with incident Parkinson’s disease, and the Rocky Mountain region carried a strong association between PM_2.5 and Parkson’s disease with a 16% increase in risk per level of exposure to PM_2.5. While the Mississippi-Ohio River valley was also associated with Parkinson’s disease, there was a weaker association between PM_2.5 and Parkinson’s disease, which the researchers attributed to a “ceiling effect” of PM_2.5 between approximately 12-19 mcg/m³.

Dr. Krzyzanowski said that use of a large-population-based dataset and high-resolution location data were major strengths of the study. “Having this level of information leaves less room for uncertainty in our measures and analyses,” she said. “Our study also leveraged innovative geographic information systems which allowed us to refine local patterns of disease by using population behavior and demographic information (such as smoking and age) to ensure that we could provide the most accurate map representation available to date.”
 

A focus on air pollution

Existing research in examining the etiology of Parkinson’s mainly focused on exposure to pesticides,* Dr. Krzyzanowski explained, and “consists of studies using relatively small populations and low-resolution air pollution data.” Genetics is another possible cause, she noted, but only explains some Parkinson’s disease cases.

“Our work suggests that we should also be looking at air pollution as a contributor in the development of Parkinson’s disease,” she said.

Ray Dorsey, MD, professor of neurology at the University of Rochester (N.Y.), who was not involved with the study, said that evidence is mounting that “air pollution may be an important causal factor in Parkinson’s and especially Alzheimer’s disease.”

“This study by a well-regarded group of researchers adds epidemiological evidence for that association,” he said. Another strength is that the study was conducted in the United States, as many epidemiological studies evaluating air pollution and Parkinson’s disease have been performed outside the country because of “a dearth of reliable data sources.”

“This study, along with others, suggest that some of the important environmental toxicants tied to brain disease may be inhaled,” Dr. Dorsey said. “The nose may be the front door to the brain.”

Dr. Krzyzanowski said the next step in their research is further examination of different types of air pollution. “Air pollution contains a variety of toxic components which vary from region to region. Understanding the different components in air pollution and how they interact with climate, temperature, and topography could help explain the regional differences we observed.”

One potential limitation in the study is a lag between air pollution exposure and development of Parkinson’s disease, Dr. Dorsey noted.

“Here, it looks like (but I am not certain) that the investigators looked at current air pollution levels and new cases of Parkinson’s. Ideally, for incident cases of Parkinson’s disease, we would want to know historical data on exposure to air pollution,” he said.

Future studies should include prospective evaluation of adults as well as babies and children who have been exposed to both high and low levels of air pollution. That kind of study “would be incredibly valuable for determining the role of an important environmental toxicant in many brain diseases, including stroke, Alzheimer’s, and Parkinson’s,” he said.

Dr. Krzyzanowski and Dr. Dorsey reported no relevant financial disclosures. This study was supported by grants from the Department of Defense, the National Institute of Environmental Health Sciences, and The Michael J. Fox Foundation for Parkinson’s Research.

*Correction, 4/14/23: An earlier version of this article mischaracterized the disease that was the subject of this research.

Women with better indicators of cardiovascular health at midlife saw reduced risk of later dementia, according to results of a study that was released early, ahead of its scheduled presentation at the annual meeting of the American Academy of Neurology.

Epidemiologist Pamela M. Rist, ScD, assistant professor of medicine at Harvard Medical School and associate epidemiologist at Brigham and Women’s Hospital, both in Boston, and colleagues, used data from 13,720 women whose mean age was 54 when they enrolled in the Harvard-based Women’s Health Study between 1992 and 1995. Subjects in that study were followed up in 2004.

Brigham and Women&#039;s Hospital

Putting ‘Life’s Simple 7’ to the test

Dr. Rist and colleagues used the Harvard data to discern how well closely women conformed, during the initial study period and at 10-year follow up, to what the American Heart Association describes as “Life’s Simple 7,” a list of behavioral and biometric measures that indicate and predict cardiovascular health. The measures include four modifiable behaviors – not smoking, healthy weight, a healthy diet, and being physically active – along with three biometric measures of blood pressure, cholesterol, and blood sugar (AHA has since added a sleep component).

Researchers assigned women one point for each desirable habit or measure on the list, with subjects’ average Simple 7 score at baseline 4.3, and 4.2 at 10 years’ follow-up.

The investigators then looked at Medicare data for the study subjects from 2011 to 2018 – approximately 20 years after their enrollment in the Women’s Health Study – seeking dementia diagnoses. Some 13% of the study cohort (n = 1,771) had gone on to develop dementia.

Each point on the Simple 7 score at baseline corresponded with a 6% reduction in later dementia risk, Dr. Rist and her colleagues found after adjusting for variables including age and education (odds ratio per one unit change in score, 0.94; 95% CI, 0.90-0.98). This effect was similar for Simple 7 scores measured at 10 years of follow-up (OR, 0.95; 95% CI, 0.91-1.00).

“It can be empowering for people to know that by taking steps such as exercising for a half an hour a day or keeping their blood pressure under control, they can reduce their risk of dementia,” Dr. Rist said in a statement on the findings.
 

‘A simple take-home message’

Reached for comment, Andrew E. Budson, MD, chief of cognitive-behavioral neurology at the VA Boston Healthcare System, praised Dr. Rist and colleagues’ study as one that “builds on existing knowledge to provide a simple take-home message that empowers women to take control of their dementia risk.”

VA Boston Healthcare System

Each of the seven known risk factors – being active, eating better, maintaining a healthy weight, not smoking, maintaining a healthy blood pressure, controlling cholesterol, and having low blood sugar – “was associated with a 6% reduced risk of dementia,” Dr. Budson continued. “So, women who work to address all seven risk factors can reduce their risk of developing dementia by 42%: a huge amount. Moreover, although this study only looked at women, I am confident that if men follow this same advice they will also be able to reduce their risk of dementia, although we don’t know if the size of the effect will be the same.”

Dr. Rist and colleagues’ study was supported by the National Institutes of Health. None of the study authors reported conflicts of interest. Dr. Budson has reported receiving past compensation as a speaker for Eli Lilly.

Women with better indicators of cardiovascular health at midlife saw reduced risk of later dementia, according to results of a study that was released early, ahead of its scheduled presentation at the annual meeting of the American Academy of Neurology.

Epidemiologist Pamela M. Rist, ScD, assistant professor of medicine at Harvard Medical School and associate epidemiologist at Brigham and Women’s Hospital, both in Boston, and colleagues, used data from 13,720 women whose mean age was 54 when they enrolled in the Harvard-based Women’s Health Study between 1992 and 1995. Subjects in that study were followed up in 2004.

Brigham and Women&#039;s Hospital

Putting ‘Life’s Simple 7’ to the test

Dr. Rist and colleagues used the Harvard data to discern how well closely women conformed, during the initial study period and at 10-year follow up, to what the American Heart Association describes as “Life’s Simple 7,” a list of behavioral and biometric measures that indicate and predict cardiovascular health. The measures include four modifiable behaviors – not smoking, healthy weight, a healthy diet, and being physically active – along with three biometric measures of blood pressure, cholesterol, and blood sugar (AHA has since added a sleep component).

Researchers assigned women one point for each desirable habit or measure on the list, with subjects’ average Simple 7 score at baseline 4.3, and 4.2 at 10 years’ follow-up.

The investigators then looked at Medicare data for the study subjects from 2011 to 2018 – approximately 20 years after their enrollment in the Women’s Health Study – seeking dementia diagnoses. Some 13% of the study cohort (n = 1,771) had gone on to develop dementia.

Each point on the Simple 7 score at baseline corresponded with a 6% reduction in later dementia risk, Dr. Rist and her colleagues found after adjusting for variables including age and education (odds ratio per one unit change in score, 0.94; 95% CI, 0.90-0.98). This effect was similar for Simple 7 scores measured at 10 years of follow-up (OR, 0.95; 95% CI, 0.91-1.00).

“It can be empowering for people to know that by taking steps such as exercising for a half an hour a day or keeping their blood pressure under control, they can reduce their risk of dementia,” Dr. Rist said in a statement on the findings.
 

‘A simple take-home message’

Reached for comment, Andrew E. Budson, MD, chief of cognitive-behavioral neurology at the VA Boston Healthcare System, praised Dr. Rist and colleagues’ study as one that “builds on existing knowledge to provide a simple take-home message that empowers women to take control of their dementia risk.”

VA Boston Healthcare System

Each of the seven known risk factors – being active, eating better, maintaining a healthy weight, not smoking, maintaining a healthy blood pressure, controlling cholesterol, and having low blood sugar – “was associated with a 6% reduced risk of dementia,” Dr. Budson continued. “So, women who work to address all seven risk factors can reduce their risk of developing dementia by 42%: a huge amount. Moreover, although this study only looked at women, I am confident that if men follow this same advice they will also be able to reduce their risk of dementia, although we don’t know if the size of the effect will be the same.”

Dr. Rist and colleagues’ study was supported by the National Institutes of Health. None of the study authors reported conflicts of interest. Dr. Budson has reported receiving past compensation as a speaker for Eli Lilly.

Women with better indicators of cardiovascular health at midlife saw reduced risk of later dementia, according to results of a study that was released early, ahead of its scheduled presentation at the annual meeting of the American Academy of Neurology.

Epidemiologist Pamela M. Rist, ScD, assistant professor of medicine at Harvard Medical School and associate epidemiologist at Brigham and Women’s Hospital, both in Boston, and colleagues, used data from 13,720 women whose mean age was 54 when they enrolled in the Harvard-based Women’s Health Study between 1992 and 1995. Subjects in that study were followed up in 2004.

Brigham and Women&#039;s Hospital

Putting ‘Life’s Simple 7’ to the test

Dr. Rist and colleagues used the Harvard data to discern how well closely women conformed, during the initial study period and at 10-year follow up, to what the American Heart Association describes as “Life’s Simple 7,” a list of behavioral and biometric measures that indicate and predict cardiovascular health. The measures include four modifiable behaviors – not smoking, healthy weight, a healthy diet, and being physically active – along with three biometric measures of blood pressure, cholesterol, and blood sugar (AHA has since added a sleep component).

Researchers assigned women one point for each desirable habit or measure on the list, with subjects’ average Simple 7 score at baseline 4.3, and 4.2 at 10 years’ follow-up.

The investigators then looked at Medicare data for the study subjects from 2011 to 2018 – approximately 20 years after their enrollment in the Women’s Health Study – seeking dementia diagnoses. Some 13% of the study cohort (n = 1,771) had gone on to develop dementia.

Each point on the Simple 7 score at baseline corresponded with a 6% reduction in later dementia risk, Dr. Rist and her colleagues found after adjusting for variables including age and education (odds ratio per one unit change in score, 0.94; 95% CI, 0.90-0.98). This effect was similar for Simple 7 scores measured at 10 years of follow-up (OR, 0.95; 95% CI, 0.91-1.00).

“It can be empowering for people to know that by taking steps such as exercising for a half an hour a day or keeping their blood pressure under control, they can reduce their risk of dementia,” Dr. Rist said in a statement on the findings.
 

‘A simple take-home message’

Reached for comment, Andrew E. Budson, MD, chief of cognitive-behavioral neurology at the VA Boston Healthcare System, praised Dr. Rist and colleagues’ study as one that “builds on existing knowledge to provide a simple take-home message that empowers women to take control of their dementia risk.”

VA Boston Healthcare System

Each of the seven known risk factors – being active, eating better, maintaining a healthy weight, not smoking, maintaining a healthy blood pressure, controlling cholesterol, and having low blood sugar – “was associated with a 6% reduced risk of dementia,” Dr. Budson continued. “So, women who work to address all seven risk factors can reduce their risk of developing dementia by 42%: a huge amount. Moreover, although this study only looked at women, I am confident that if men follow this same advice they will also be able to reduce their risk of dementia, although we don’t know if the size of the effect will be the same.”

Dr. Rist and colleagues’ study was supported by the National Institutes of Health. None of the study authors reported conflicts of interest. Dr. Budson has reported receiving past compensation as a speaker for Eli Lilly.