Family Practice News

TOPLINE:

Healthcare utilization after immediate and delayed intrauterine device (IUD) placement postpartum was comparable, with the immediate placement group making slightly fewer visits to obstetricians or gynecologists (ob/gyns). While immediate placement was associated with increased rates of imaging, it showed lower rates of laparoscopic surgery for IUD-related complications.

METHODOLOGY:

• Researchers conducted a retrospective cohort study using data from Kaiser Permanente Northern California electronic health records to compare healthcare utilization after immediate (within 24 hours of placental delivery) and delayed (after 24 hours up to 6 weeks later) IUD placement.
• They included 11,875 patients who delivered a live neonate and had an IUD placed between 0 and 63 days postpartum from 2016 to 2020, of whom 1543 received immediate IUD placement.
• The primary outcome measures focused on the number of outpatient visits to ob/gyns for any indication within 1 year after delivery.
• The secondary outcomes included pelvic or abdominal ultrasonograms performed in radiology departments, surgical interventions, hospitalizations related to IUD placement, and rates of pregnancy within 1 year.

TAKEAWAY:

• Immediate placement of an IUD was associated with a modest decrease in the number of overall visits to ob/gyns compared with delayed placement (mean visits, 2.30 vs 2.47; adjusted risk ratio [aRR], 0.91; 95% CI, 0.87-0.94; P < .001).
• Immediate placement of an IUD was associated with more imaging studies not within an ob/gyn visit (aRR, 2.26; P < .001); however, the rates of laparoscopic surgeries for complications related to IUD were lower in the immediate than in the delayed group (0.0% vs 0.4%; P = .005).
• Hospitalizations related to IUD insertion were rare and increased in the immediate group (0.4% immediate; 0.02% delayed; P < .001).
• No significant differences in repeat pregnancies were observed between the groups at 1 year (P = .342), and immediate placement of an IUD was not associated with an increased risk for ectopic pregnancies.

IN PRACTICE:

“Because one of the main goals of immediate IUD is preventing short-interval unintended pregnancies, it is of critical importance to highlight that there was no difference in the pregnancy rate between groups in the study,” the authors wrote. “This study can guide patient counseling and consent for immediate IUD,” they further added.

SOURCE:

This study was led by Talis M. Swisher, MD, of the Department of Obstetrics and Gynecology at the San Leandro Medical Center of Kaiser Permanente in San Leandro, California. It was published online on December 12, 2024, in Obstetrics & Gynecology.

LIMITATIONS:

Data on patient satisfaction were not included in this study. No analysis of cost-benefit was carried out due to challenges in comparing differences in insurance plans and regional disparities in costs across the United States. The study setting was unique to Kaiser Permanente Northern California, in which all patients in the hospital had access to IUDs and multiple settings of ultrasonography were readily available. Visits carried out virtually were not included in the analysis.

DISCLOSURES:

This study was supported by the Kaiser Permanente Northern California Graduate Medical Education Program, Kaiser Foundation Hospitals. The authors reported no potential conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Healthcare utilization after immediate and delayed intrauterine device (IUD) placement postpartum was comparable, with the immediate placement group making slightly fewer visits to obstetricians or gynecologists (ob/gyns). While immediate placement was associated with increased rates of imaging, it showed lower rates of laparoscopic surgery for IUD-related complications.

METHODOLOGY:

• Researchers conducted a retrospective cohort study using data from Kaiser Permanente Northern California electronic health records to compare healthcare utilization after immediate (within 24 hours of placental delivery) and delayed (after 24 hours up to 6 weeks later) IUD placement.
• They included 11,875 patients who delivered a live neonate and had an IUD placed between 0 and 63 days postpartum from 2016 to 2020, of whom 1543 received immediate IUD placement.
• The primary outcome measures focused on the number of outpatient visits to ob/gyns for any indication within 1 year after delivery.
• The secondary outcomes included pelvic or abdominal ultrasonograms performed in radiology departments, surgical interventions, hospitalizations related to IUD placement, and rates of pregnancy within 1 year.

TAKEAWAY:

• Immediate placement of an IUD was associated with a modest decrease in the number of overall visits to ob/gyns compared with delayed placement (mean visits, 2.30 vs 2.47; adjusted risk ratio [aRR], 0.91; 95% CI, 0.87-0.94; P < .001).
• Immediate placement of an IUD was associated with more imaging studies not within an ob/gyn visit (aRR, 2.26; P < .001); however, the rates of laparoscopic surgeries for complications related to IUD were lower in the immediate than in the delayed group (0.0% vs 0.4%; P = .005).
• Hospitalizations related to IUD insertion were rare and increased in the immediate group (0.4% immediate; 0.02% delayed; P < .001).
• No significant differences in repeat pregnancies were observed between the groups at 1 year (P = .342), and immediate placement of an IUD was not associated with an increased risk for ectopic pregnancies.

IN PRACTICE:

“Because one of the main goals of immediate IUD is preventing short-interval unintended pregnancies, it is of critical importance to highlight that there was no difference in the pregnancy rate between groups in the study,” the authors wrote. “This study can guide patient counseling and consent for immediate IUD,” they further added.

SOURCE:

This study was led by Talis M. Swisher, MD, of the Department of Obstetrics and Gynecology at the San Leandro Medical Center of Kaiser Permanente in San Leandro, California. It was published online on December 12, 2024, in Obstetrics & Gynecology.

LIMITATIONS:

Data on patient satisfaction were not included in this study. No analysis of cost-benefit was carried out due to challenges in comparing differences in insurance plans and regional disparities in costs across the United States. The study setting was unique to Kaiser Permanente Northern California, in which all patients in the hospital had access to IUDs and multiple settings of ultrasonography were readily available. Visits carried out virtually were not included in the analysis.

DISCLOSURES:

This study was supported by the Kaiser Permanente Northern California Graduate Medical Education Program, Kaiser Foundation Hospitals. The authors reported no potential conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Healthcare utilization after immediate and delayed intrauterine device (IUD) placement postpartum was comparable, with the immediate placement group making slightly fewer visits to obstetricians or gynecologists (ob/gyns). While immediate placement was associated with increased rates of imaging, it showed lower rates of laparoscopic surgery for IUD-related complications.

METHODOLOGY:

• Researchers conducted a retrospective cohort study using data from Kaiser Permanente Northern California electronic health records to compare healthcare utilization after immediate (within 24 hours of placental delivery) and delayed (after 24 hours up to 6 weeks later) IUD placement.
• They included 11,875 patients who delivered a live neonate and had an IUD placed between 0 and 63 days postpartum from 2016 to 2020, of whom 1543 received immediate IUD placement.
• The primary outcome measures focused on the number of outpatient visits to ob/gyns for any indication within 1 year after delivery.
• The secondary outcomes included pelvic or abdominal ultrasonograms performed in radiology departments, surgical interventions, hospitalizations related to IUD placement, and rates of pregnancy within 1 year.

TAKEAWAY:

• Immediate placement of an IUD was associated with a modest decrease in the number of overall visits to ob/gyns compared with delayed placement (mean visits, 2.30 vs 2.47; adjusted risk ratio [aRR], 0.91; 95% CI, 0.87-0.94; P < .001).
• Immediate placement of an IUD was associated with more imaging studies not within an ob/gyn visit (aRR, 2.26; P < .001); however, the rates of laparoscopic surgeries for complications related to IUD were lower in the immediate than in the delayed group (0.0% vs 0.4%; P = .005).
• Hospitalizations related to IUD insertion were rare and increased in the immediate group (0.4% immediate; 0.02% delayed; P < .001).
• No significant differences in repeat pregnancies were observed between the groups at 1 year (P = .342), and immediate placement of an IUD was not associated with an increased risk for ectopic pregnancies.

IN PRACTICE:

“Because one of the main goals of immediate IUD is preventing short-interval unintended pregnancies, it is of critical importance to highlight that there was no difference in the pregnancy rate between groups in the study,” the authors wrote. “This study can guide patient counseling and consent for immediate IUD,” they further added.

SOURCE:

This study was led by Talis M. Swisher, MD, of the Department of Obstetrics and Gynecology at the San Leandro Medical Center of Kaiser Permanente in San Leandro, California. It was published online on December 12, 2024, in Obstetrics & Gynecology.

LIMITATIONS:

Data on patient satisfaction were not included in this study. No analysis of cost-benefit was carried out due to challenges in comparing differences in insurance plans and regional disparities in costs across the United States. The study setting was unique to Kaiser Permanente Northern California, in which all patients in the hospital had access to IUDs and multiple settings of ultrasonography were readily available. Visits carried out virtually were not included in the analysis.

DISCLOSURES:

This study was supported by the Kaiser Permanente Northern California Graduate Medical Education Program, Kaiser Foundation Hospitals. The authors reported no potential conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

In a multinational phase 3 trial, imipenem-cilastatin-relebactam demonstrated noninferiority to piperacillin-tazobactam in treating critically ill patients with hospital-acquired bacterial pneumonia (HABP) or ventilator-associated bacterial pneumonia (VABP), with a comparable safety profile.

METHODOLOGY:

• This multinational phase 3 trial, conducted between September 2018 and July 2022, compared imipenem-cilastatin-relebactam with piperacillin-tazobactam for HABP and VABP to support its use across multiple countries.
• Overall, 270 patients with HABP or VABP (mean age, 57.6 years; 73.3% men) were randomly assigned to receive either intravenous imipenem-cilastatin-relebactam (500 mg/250 mg) or piperacillin-tazobactam (4000 mg/500 mg) every 6 hours over 30 minutes for 7-14 days.
• Both treatment groups included critically ill patients, with 54.5% and 55.1% of patients in the imipenem-cilastatin-relebactam and piperacillin-tazobactam groups, respectively, having an Acute Physiology and Chronic Health Evaluation II score ≥ 15.
• The primary outcome was the 28-day all-cause mortality; secondary outcomes included the rates of clinical and microbiological responses, as well as the incidence of adverse events.

TAKEAWAY:

• Imipenem-cilastatin-relebactam was noninferior to piperacillin-tazobactam in terms of 28-day all-cause mortality (adjusted difference, 5.2%; 95% CI, −1.5-12.4; P = .024 for noninferiority).
• At the end of treatment, the rates of a favorable clinical response were comparable between the imipenem-cilastatin-relebactam (71.6%) and piperacillin-tazobactam (68.4%) groups.
• After treatment, microbiological response rates were 48.8% in the imipenem-cilastatin-relebactam group, whereas the rates were 47.9% in the piperacillin-tazobactam group.
• The incidence of drug-related adverse events was similar across the treatment groups, with diarrhea, increased levels of alanine aminotransferase and aspartate aminotransferase, and abnormal hepatic function being the most common events.

IN PRACTICE:

“These results support the use of IMI/REL [imipenem-cilastatin-relebactam] in MDR [multidrug-resistant] infections globally, including to expand the range of available treatments for critically ill patients with HABP/VABP in China, and provide additional data to inform the World Health Organization’s MDR pathogen strategy,” the authors wrote.

SOURCE:

This study was led by Junjie Li, Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. It was published online on December 12, 2024, in the International Journal of Infectious Diseases.

LIMITATIONS:

This study excluded patients with immunosuppression and those on intermittent hemodialysis, limiting the generalizability of the results to these populations.

DISCLOSURES:

This study was funded by Merck Sharp & Dohme LLC, a subsidiary of Merck & Co. Inc., Rahway, New Jersey. Some authors served as employees of Merck Sharp & Dohme LLC, New Jersey, and MSD, China.

 

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

In a multinational phase 3 trial, imipenem-cilastatin-relebactam demonstrated noninferiority to piperacillin-tazobactam in treating critically ill patients with hospital-acquired bacterial pneumonia (HABP) or ventilator-associated bacterial pneumonia (VABP), with a comparable safety profile.

METHODOLOGY:

• This multinational phase 3 trial, conducted between September 2018 and July 2022, compared imipenem-cilastatin-relebactam with piperacillin-tazobactam for HABP and VABP to support its use across multiple countries.
• Overall, 270 patients with HABP or VABP (mean age, 57.6 years; 73.3% men) were randomly assigned to receive either intravenous imipenem-cilastatin-relebactam (500 mg/250 mg) or piperacillin-tazobactam (4000 mg/500 mg) every 6 hours over 30 minutes for 7-14 days.
• Both treatment groups included critically ill patients, with 54.5% and 55.1% of patients in the imipenem-cilastatin-relebactam and piperacillin-tazobactam groups, respectively, having an Acute Physiology and Chronic Health Evaluation II score ≥ 15.
• The primary outcome was the 28-day all-cause mortality; secondary outcomes included the rates of clinical and microbiological responses, as well as the incidence of adverse events.

TAKEAWAY:

• Imipenem-cilastatin-relebactam was noninferior to piperacillin-tazobactam in terms of 28-day all-cause mortality (adjusted difference, 5.2%; 95% CI, −1.5-12.4; P = .024 for noninferiority).
• At the end of treatment, the rates of a favorable clinical response were comparable between the imipenem-cilastatin-relebactam (71.6%) and piperacillin-tazobactam (68.4%) groups.
• After treatment, microbiological response rates were 48.8% in the imipenem-cilastatin-relebactam group, whereas the rates were 47.9% in the piperacillin-tazobactam group.
• The incidence of drug-related adverse events was similar across the treatment groups, with diarrhea, increased levels of alanine aminotransferase and aspartate aminotransferase, and abnormal hepatic function being the most common events.

IN PRACTICE:

“These results support the use of IMI/REL [imipenem-cilastatin-relebactam] in MDR [multidrug-resistant] infections globally, including to expand the range of available treatments for critically ill patients with HABP/VABP in China, and provide additional data to inform the World Health Organization’s MDR pathogen strategy,” the authors wrote.

SOURCE:

This study was led by Junjie Li, Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. It was published online on December 12, 2024, in the International Journal of Infectious Diseases.

LIMITATIONS:

This study excluded patients with immunosuppression and those on intermittent hemodialysis, limiting the generalizability of the results to these populations.

DISCLOSURES:

This study was funded by Merck Sharp & Dohme LLC, a subsidiary of Merck & Co. Inc., Rahway, New Jersey. Some authors served as employees of Merck Sharp & Dohme LLC, New Jersey, and MSD, China.

 

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

In a multinational phase 3 trial, imipenem-cilastatin-relebactam demonstrated noninferiority to piperacillin-tazobactam in treating critically ill patients with hospital-acquired bacterial pneumonia (HABP) or ventilator-associated bacterial pneumonia (VABP), with a comparable safety profile.

METHODOLOGY:

• This multinational phase 3 trial, conducted between September 2018 and July 2022, compared imipenem-cilastatin-relebactam with piperacillin-tazobactam for HABP and VABP to support its use across multiple countries.
• Overall, 270 patients with HABP or VABP (mean age, 57.6 years; 73.3% men) were randomly assigned to receive either intravenous imipenem-cilastatin-relebactam (500 mg/250 mg) or piperacillin-tazobactam (4000 mg/500 mg) every 6 hours over 30 minutes for 7-14 days.
• Both treatment groups included critically ill patients, with 54.5% and 55.1% of patients in the imipenem-cilastatin-relebactam and piperacillin-tazobactam groups, respectively, having an Acute Physiology and Chronic Health Evaluation II score ≥ 15.
• The primary outcome was the 28-day all-cause mortality; secondary outcomes included the rates of clinical and microbiological responses, as well as the incidence of adverse events.

TAKEAWAY:

• Imipenem-cilastatin-relebactam was noninferior to piperacillin-tazobactam in terms of 28-day all-cause mortality (adjusted difference, 5.2%; 95% CI, −1.5-12.4; P = .024 for noninferiority).
• At the end of treatment, the rates of a favorable clinical response were comparable between the imipenem-cilastatin-relebactam (71.6%) and piperacillin-tazobactam (68.4%) groups.
• After treatment, microbiological response rates were 48.8% in the imipenem-cilastatin-relebactam group, whereas the rates were 47.9% in the piperacillin-tazobactam group.
• The incidence of drug-related adverse events was similar across the treatment groups, with diarrhea, increased levels of alanine aminotransferase and aspartate aminotransferase, and abnormal hepatic function being the most common events.

IN PRACTICE:

“These results support the use of IMI/REL [imipenem-cilastatin-relebactam] in MDR [multidrug-resistant] infections globally, including to expand the range of available treatments for critically ill patients with HABP/VABP in China, and provide additional data to inform the World Health Organization’s MDR pathogen strategy,” the authors wrote.

SOURCE:

This study was led by Junjie Li, Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. It was published online on December 12, 2024, in the International Journal of Infectious Diseases.

LIMITATIONS:

This study excluded patients with immunosuppression and those on intermittent hemodialysis, limiting the generalizability of the results to these populations.

DISCLOSURES:

This study was funded by Merck Sharp & Dohme LLC, a subsidiary of Merck & Co. Inc., Rahway, New Jersey. Some authors served as employees of Merck Sharp & Dohme LLC, New Jersey, and MSD, China.

 

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

Aerobic exercise shows a linear relationship with weight loss, with 30 minutes of weekly exercise linked to reduced body weight, waist circumference, and body fat in adults who were overweight or had obesity.

METHODOLOGY:

• Researchers conducted a meta-analysis of randomized clinical trials to investigate the association of varying intensities and durations of aerobic exercise with adiposity measures in adults with obesity or who were overweight.
• Overall, 116 randomized clinical trials that spanned across North America, Asia, Europe, Australia, South America, and Africa and involved 6880 adults (mean age, 46 years; 61% women) were included.
• The trials were required to have intervention durations of at least 8 weeks; all trials used supervised aerobic exercise, such as walking or running, while the control groups remained sedentary or continued usual activities.
• The intensity of exercise was defined as: Light (40%-55% maximum heart rate), moderate (55%-70% maximum heart rate), and vigorous (70%-90% maximum heart rate).
• The primary outcomes were body weight changes and adverse events; the secondary outcomes included changes in waist circumference, quality-of-life scores, and reduction in medications like antihypertensives.

TAKEAWAY:

• Every 30 minutes of aerobic exercise per week was associated with a 1.14 lb reduction in body weight (certainty of evidence, moderate).
• Every 30 minutes of aerobic exercise per week was also associated with lower waist circumference (mean difference, −0.56 cm; 95% CI, –0.67 to –0.45), body fat percentage (mean difference, –0.37%; 95% CI, –0.43 to –0.31), and body fat mass (mean difference, –0.20 kg; 95% CI, –0.32 to –0.08), along with reduced visceral and subcutaneous adipose tissue.
• A dose-response meta-analysis revealed that body fat percentage improved most significantly with 150 minutes of aerobic exercise per week, while body weight and waist circumference decreased linearly with increasing duration of aerobic exercise at 300 min/wk at different intensities.
• Adverse events with aerobic exercise were mostly mild or moderate musculoskeletal symptoms.

IN PRACTICE:

“Point-specific estimates for different aerobic exercise duration and intensity can help patients and healthcare professionals select the optimal aerobic exercise duration and intensity according to their weight loss goals,” the authors wrote.

 

SOURCE:

The study was led by Ahmad Jayedi, PhD, of the Department of Epidemiology and Biostatistics in the School of Public Health at the Imperial College London in England. It was published online on December 26, 2024, in JAMA Network Open.

 

LIMITATIONS:

High heterogeneity was present in the data. Only one trial included measures of health-related quality of life, and two studies included measures of medication use. Dietary habits and smoking status of participants were not included in studies, so any potential effects were not risk adjusted for.

 

DISCLOSURES:

No funding sources were reported. The authors reported no relevant conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

Aerobic exercise shows a linear relationship with weight loss, with 30 minutes of weekly exercise linked to reduced body weight, waist circumference, and body fat in adults who were overweight or had obesity.

METHODOLOGY:

• Researchers conducted a meta-analysis of randomized clinical trials to investigate the association of varying intensities and durations of aerobic exercise with adiposity measures in adults with obesity or who were overweight.
• Overall, 116 randomized clinical trials that spanned across North America, Asia, Europe, Australia, South America, and Africa and involved 6880 adults (mean age, 46 years; 61% women) were included.
• The trials were required to have intervention durations of at least 8 weeks; all trials used supervised aerobic exercise, such as walking or running, while the control groups remained sedentary or continued usual activities.
• The intensity of exercise was defined as: Light (40%-55% maximum heart rate), moderate (55%-70% maximum heart rate), and vigorous (70%-90% maximum heart rate).
• The primary outcomes were body weight changes and adverse events; the secondary outcomes included changes in waist circumference, quality-of-life scores, and reduction in medications like antihypertensives.

TAKEAWAY:

• Every 30 minutes of aerobic exercise per week was associated with a 1.14 lb reduction in body weight (certainty of evidence, moderate).
• Every 30 minutes of aerobic exercise per week was also associated with lower waist circumference (mean difference, −0.56 cm; 95% CI, –0.67 to –0.45), body fat percentage (mean difference, –0.37%; 95% CI, –0.43 to –0.31), and body fat mass (mean difference, –0.20 kg; 95% CI, –0.32 to –0.08), along with reduced visceral and subcutaneous adipose tissue.
• A dose-response meta-analysis revealed that body fat percentage improved most significantly with 150 minutes of aerobic exercise per week, while body weight and waist circumference decreased linearly with increasing duration of aerobic exercise at 300 min/wk at different intensities.
• Adverse events with aerobic exercise were mostly mild or moderate musculoskeletal symptoms.

IN PRACTICE:

“Point-specific estimates for different aerobic exercise duration and intensity can help patients and healthcare professionals select the optimal aerobic exercise duration and intensity according to their weight loss goals,” the authors wrote.

 

SOURCE:

The study was led by Ahmad Jayedi, PhD, of the Department of Epidemiology and Biostatistics in the School of Public Health at the Imperial College London in England. It was published online on December 26, 2024, in JAMA Network Open.

 

LIMITATIONS:

High heterogeneity was present in the data. Only one trial included measures of health-related quality of life, and two studies included measures of medication use. Dietary habits and smoking status of participants were not included in studies, so any potential effects were not risk adjusted for.

 

DISCLOSURES:

No funding sources were reported. The authors reported no relevant conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

Aerobic exercise shows a linear relationship with weight loss, with 30 minutes of weekly exercise linked to reduced body weight, waist circumference, and body fat in adults who were overweight or had obesity.

METHODOLOGY:

• Researchers conducted a meta-analysis of randomized clinical trials to investigate the association of varying intensities and durations of aerobic exercise with adiposity measures in adults with obesity or who were overweight.
• Overall, 116 randomized clinical trials that spanned across North America, Asia, Europe, Australia, South America, and Africa and involved 6880 adults (mean age, 46 years; 61% women) were included.
• The trials were required to have intervention durations of at least 8 weeks; all trials used supervised aerobic exercise, such as walking or running, while the control groups remained sedentary or continued usual activities.
• The intensity of exercise was defined as: Light (40%-55% maximum heart rate), moderate (55%-70% maximum heart rate), and vigorous (70%-90% maximum heart rate).
• The primary outcomes were body weight changes and adverse events; the secondary outcomes included changes in waist circumference, quality-of-life scores, and reduction in medications like antihypertensives.

TAKEAWAY:

• Every 30 minutes of aerobic exercise per week was associated with a 1.14 lb reduction in body weight (certainty of evidence, moderate).
• Every 30 minutes of aerobic exercise per week was also associated with lower waist circumference (mean difference, −0.56 cm; 95% CI, –0.67 to –0.45), body fat percentage (mean difference, –0.37%; 95% CI, –0.43 to –0.31), and body fat mass (mean difference, –0.20 kg; 95% CI, –0.32 to –0.08), along with reduced visceral and subcutaneous adipose tissue.
• A dose-response meta-analysis revealed that body fat percentage improved most significantly with 150 minutes of aerobic exercise per week, while body weight and waist circumference decreased linearly with increasing duration of aerobic exercise at 300 min/wk at different intensities.
• Adverse events with aerobic exercise were mostly mild or moderate musculoskeletal symptoms.

IN PRACTICE:

“Point-specific estimates for different aerobic exercise duration and intensity can help patients and healthcare professionals select the optimal aerobic exercise duration and intensity according to their weight loss goals,” the authors wrote.

 

SOURCE:

The study was led by Ahmad Jayedi, PhD, of the Department of Epidemiology and Biostatistics in the School of Public Health at the Imperial College London in England. It was published online on December 26, 2024, in JAMA Network Open.

 

LIMITATIONS:

High heterogeneity was present in the data. Only one trial included measures of health-related quality of life, and two studies included measures of medication use. Dietary habits and smoking status of participants were not included in studies, so any potential effects were not risk adjusted for.

 

DISCLOSURES:

No funding sources were reported. The authors reported no relevant conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

A widely accepted assumption in the addiction field is that neuroanatomical changes observed in young people who use alcohol or other substances are largely the consequence of exposure to these substances.

But a new study suggests that neuroanatomical features in children, including greater whole brain and cortical volumes, are evident before exposure to any substances.

The investigators, led by Alex P. Miller, PhD, assistant professor, Department of Psychiatry, Indiana University, Indianapolis, noted that the findings add to a growing body of work that suggests individual brain structure, along with environmental exposure and genetic risk, may influence risk for substance use disorder. 

The findings were published online in JAMA Network Open.

 

Neuroanatomy a Predisposing Risk Factor?

Earlier research showed that substance use is associated with lower gray matter volume, thinner cortex, and less white matter integrity. While it has been widely thought that these changes were induced by the use of alcohol or illicit drugs, recent longitudinal and genetic studies suggest that the neuroanatomical changes may also be predisposing risk factors for substance use.

To better understand the issue, investigators analyzed data on 9804 children (mean baseline age, 9.9 years; 53% men; 76% White) at 22 US sites enrolled in the Adolescent Brain Cognitive Development (ABCD) Study that’s examining brain and behavioral development from middle childhood to young adulthood.

The researchers collected information on the use of alcohol, nicotine, cannabis, and other illicit substances from in-person interviews at baseline and years 1, 2, and 3, as well as interim phone interviews at 6, 18, and 30 months. MRI scans provided extensive brain structural data, including global and regional cortical volume, thickness, surface area, sulcal depth, and subcortical volume.

Of the total, 3460 participants (35%) initiated substance use before age 15, with 90% reporting alcohol use initiation. There was considerable overlap between initiation of alcohol, nicotine, and cannabis.

The researchers tested whether baseline neuroanatomical variability was associated with any substance use initiation before or up to 3 years following initial neuroimaging scans. Study covariates included baseline age, sex, pubertal status, familial relationship (eg, sibling or twin), and prenatal substance exposures. Researchers didn’t control for sociodemographic characteristics as these could influence associations.

 

Significant Brain Differences

Compared with no substance use initiation, any substance use initiation was associated with larger global neuroanatomical indices, including whole brain (beta = 0.05; P = 2.80 × 10^–8), total intracranial (beta = 0.04; P = 3.49 × 10⁻⁶), cortical (beta = 0.05; P = 4.31 × 10^–8), and subcortical volumes (beta = 0.05; P = 4.39 × 10^–8), as well as greater total cortical surface area (beta = 0.04; P = 6.05 × 10^–7).

The direction of associations between cortical thickness and substance use initiation was regionally specific; any substance use initiation was characterized by thinner cortex in all frontal regions (eg, rostral middle frontal gyrus, beta = −0.03; P = 6.99 × 10^–6), but thicker cortex in all other lobes. It was also associated with larger regional brain volumes, deeper regional sulci, and differences in regional cortical surface area.

The authors noted total cortical thickness peaks at age 1.7 years and steadily declines throughout life. By contrast, subcortical volumes peak at 14.4 years of age and generally remain stable before steep later life declines.

Secondary analyses compared initiation of the three most commonly used substances in early adolescence (alcohol, nicotine, and cannabis) with no substance use.

Findings for alcohol largely mirrored those for any substance use. However, the study uncovered additional significant associations, including greater left lateral occipital volume and bilateral para-hippocampal gyri cortical thickness and less bilateral superior frontal gyri cortical thickness.

Nicotine use was associated with lower right superior frontal gyrus volume and deeper left lateral orbitofrontal cortex sulci. And cannabis use was associated with thinner left precentral gyrus and lower right inferior parietal gyrus and right caudate volumes.

The authors noted results for nicotine and cannabis may not have had adequate statistical power, and small effects suggest these findings aren’t clinically informative for individuals. However, they wrote, “They do inform and challenge current theoretical models of addiction.”

 

Associations Precede Substance Use

A post hoc analysis further challenges current models of addiction. When researchers looked only at the 1203 youth who initiated substance use after the baseline neuroimaging session, they found most associations preceded substance use.

“That regional associations may precede substance use initiation, including less cortical thickness in the right rostral middle frontal gyrus, challenges predominant interpretations that these associations arise largely due to neurotoxic consequences of exposure and increases the plausibility that these features may, at least partially, reflect markers of predispositional risk,” wrote the authors.

A study limitation was that unmeasured confounders and undetected systemic differences in missing data may have influenced associations. Sociodemographic, environmental, and genetic variables that were not included as covariates are likely associated with both neuroanatomical variability and substance use initiation and may moderate associations between them, said the authors.

The ABCD Study provides “a robust and large database of longitudinal data” that goes beyond previous neuroimaging research “to understand the bidirectional relationship between brain structure and substance use,” Miller said in a press release.

“The hope is that these types of studies, in conjunction with other data on environmental exposures and genetic risk, could help change how we think about the development of substance use disorders and inform more accurate models of addiction moving forward,” Miller said.

 

Reevaluating Causal Assumptions

In an accompanying editorial, Felix Pichardo, MA, and Sylia Wilson, PhD, from the Institute of Child Development, University of Minnesota, Minneapolis, suggested that it may be time to “reevaluate the causal assumptions that underlie brain disease models of addiction” and the mechanisms by which it develops, persists, and becomes harmful.

Neurotoxic effects of substances are central to current brain disease models of addiction, wrote Pichardo and Wilson. “Substance exposure is thought to affect cortical and subcortical regions that support interrelated systems, resulting in desensitization of reward-related processing, increased stress that prompts cravings, negative emotions when cravings are unsated, and weakening of cognitive control abilities that leads to repeated returns to use.”

The editorial writers praised the ABCD Study for its large sample size for providing a level of precision, statistical accuracy, and ability to identify both larger and smaller effects, which are critical for addiction research.

Unlike most addiction research that relies on cross-sectional designs, the current study used longitudinal assessments, which is another of its strengths, they noted.

“Longitudinal study designs like in the ABCD Study are fundamental for establishing temporal ordering across constructs, which is important because establishing temporal precedence is a key step in determining causal links and underlying mechanisms.”

The inclusion of several genetically informative components, such as the family study design, nested twin subsamples, and DNA collection, “allows researchers to extend beyond temporal precedence toward increased causal inference and identification of mechanisms,” they added.

The study received support from the National Institutes of Health. The study authors and editorial writers had no relevant conflicts of interest.

A version of this article appeared on Medscape.com.

A widely accepted assumption in the addiction field is that neuroanatomical changes observed in young people who use alcohol or other substances are largely the consequence of exposure to these substances.

But a new study suggests that neuroanatomical features in children, including greater whole brain and cortical volumes, are evident before exposure to any substances.

The investigators, led by Alex P. Miller, PhD, assistant professor, Department of Psychiatry, Indiana University, Indianapolis, noted that the findings add to a growing body of work that suggests individual brain structure, along with environmental exposure and genetic risk, may influence risk for substance use disorder. 

The findings were published online in JAMA Network Open.

 

Neuroanatomy a Predisposing Risk Factor?

Earlier research showed that substance use is associated with lower gray matter volume, thinner cortex, and less white matter integrity. While it has been widely thought that these changes were induced by the use of alcohol or illicit drugs, recent longitudinal and genetic studies suggest that the neuroanatomical changes may also be predisposing risk factors for substance use.

To better understand the issue, investigators analyzed data on 9804 children (mean baseline age, 9.9 years; 53% men; 76% White) at 22 US sites enrolled in the Adolescent Brain Cognitive Development (ABCD) Study that’s examining brain and behavioral development from middle childhood to young adulthood.

The researchers collected information on the use of alcohol, nicotine, cannabis, and other illicit substances from in-person interviews at baseline and years 1, 2, and 3, as well as interim phone interviews at 6, 18, and 30 months. MRI scans provided extensive brain structural data, including global and regional cortical volume, thickness, surface area, sulcal depth, and subcortical volume.

Of the total, 3460 participants (35%) initiated substance use before age 15, with 90% reporting alcohol use initiation. There was considerable overlap between initiation of alcohol, nicotine, and cannabis.

The researchers tested whether baseline neuroanatomical variability was associated with any substance use initiation before or up to 3 years following initial neuroimaging scans. Study covariates included baseline age, sex, pubertal status, familial relationship (eg, sibling or twin), and prenatal substance exposures. Researchers didn’t control for sociodemographic characteristics as these could influence associations.

 

Significant Brain Differences

Compared with no substance use initiation, any substance use initiation was associated with larger global neuroanatomical indices, including whole brain (beta = 0.05; P = 2.80 × 10^–8), total intracranial (beta = 0.04; P = 3.49 × 10⁻⁶), cortical (beta = 0.05; P = 4.31 × 10^–8), and subcortical volumes (beta = 0.05; P = 4.39 × 10^–8), as well as greater total cortical surface area (beta = 0.04; P = 6.05 × 10^–7).

The direction of associations between cortical thickness and substance use initiation was regionally specific; any substance use initiation was characterized by thinner cortex in all frontal regions (eg, rostral middle frontal gyrus, beta = −0.03; P = 6.99 × 10^–6), but thicker cortex in all other lobes. It was also associated with larger regional brain volumes, deeper regional sulci, and differences in regional cortical surface area.

The authors noted total cortical thickness peaks at age 1.7 years and steadily declines throughout life. By contrast, subcortical volumes peak at 14.4 years of age and generally remain stable before steep later life declines.

Secondary analyses compared initiation of the three most commonly used substances in early adolescence (alcohol, nicotine, and cannabis) with no substance use.

Findings for alcohol largely mirrored those for any substance use. However, the study uncovered additional significant associations, including greater left lateral occipital volume and bilateral para-hippocampal gyri cortical thickness and less bilateral superior frontal gyri cortical thickness.

Nicotine use was associated with lower right superior frontal gyrus volume and deeper left lateral orbitofrontal cortex sulci. And cannabis use was associated with thinner left precentral gyrus and lower right inferior parietal gyrus and right caudate volumes.

The authors noted results for nicotine and cannabis may not have had adequate statistical power, and small effects suggest these findings aren’t clinically informative for individuals. However, they wrote, “They do inform and challenge current theoretical models of addiction.”

 

Associations Precede Substance Use

A post hoc analysis further challenges current models of addiction. When researchers looked only at the 1203 youth who initiated substance use after the baseline neuroimaging session, they found most associations preceded substance use.

“That regional associations may precede substance use initiation, including less cortical thickness in the right rostral middle frontal gyrus, challenges predominant interpretations that these associations arise largely due to neurotoxic consequences of exposure and increases the plausibility that these features may, at least partially, reflect markers of predispositional risk,” wrote the authors.

A study limitation was that unmeasured confounders and undetected systemic differences in missing data may have influenced associations. Sociodemographic, environmental, and genetic variables that were not included as covariates are likely associated with both neuroanatomical variability and substance use initiation and may moderate associations between them, said the authors.

The ABCD Study provides “a robust and large database of longitudinal data” that goes beyond previous neuroimaging research “to understand the bidirectional relationship between brain structure and substance use,” Miller said in a press release.

“The hope is that these types of studies, in conjunction with other data on environmental exposures and genetic risk, could help change how we think about the development of substance use disorders and inform more accurate models of addiction moving forward,” Miller said.

 

Reevaluating Causal Assumptions

In an accompanying editorial, Felix Pichardo, MA, and Sylia Wilson, PhD, from the Institute of Child Development, University of Minnesota, Minneapolis, suggested that it may be time to “reevaluate the causal assumptions that underlie brain disease models of addiction” and the mechanisms by which it develops, persists, and becomes harmful.

Neurotoxic effects of substances are central to current brain disease models of addiction, wrote Pichardo and Wilson. “Substance exposure is thought to affect cortical and subcortical regions that support interrelated systems, resulting in desensitization of reward-related processing, increased stress that prompts cravings, negative emotions when cravings are unsated, and weakening of cognitive control abilities that leads to repeated returns to use.”

The editorial writers praised the ABCD Study for its large sample size for providing a level of precision, statistical accuracy, and ability to identify both larger and smaller effects, which are critical for addiction research.

Unlike most addiction research that relies on cross-sectional designs, the current study used longitudinal assessments, which is another of its strengths, they noted.

“Longitudinal study designs like in the ABCD Study are fundamental for establishing temporal ordering across constructs, which is important because establishing temporal precedence is a key step in determining causal links and underlying mechanisms.”

The inclusion of several genetically informative components, such as the family study design, nested twin subsamples, and DNA collection, “allows researchers to extend beyond temporal precedence toward increased causal inference and identification of mechanisms,” they added.

The study received support from the National Institutes of Health. The study authors and editorial writers had no relevant conflicts of interest.

A version of this article appeared on Medscape.com.

A widely accepted assumption in the addiction field is that neuroanatomical changes observed in young people who use alcohol or other substances are largely the consequence of exposure to these substances.

But a new study suggests that neuroanatomical features in children, including greater whole brain and cortical volumes, are evident before exposure to any substances.

The investigators, led by Alex P. Miller, PhD, assistant professor, Department of Psychiatry, Indiana University, Indianapolis, noted that the findings add to a growing body of work that suggests individual brain structure, along with environmental exposure and genetic risk, may influence risk for substance use disorder. 

The findings were published online in JAMA Network Open.

 

Neuroanatomy a Predisposing Risk Factor?

Earlier research showed that substance use is associated with lower gray matter volume, thinner cortex, and less white matter integrity. While it has been widely thought that these changes were induced by the use of alcohol or illicit drugs, recent longitudinal and genetic studies suggest that the neuroanatomical changes may also be predisposing risk factors for substance use.

To better understand the issue, investigators analyzed data on 9804 children (mean baseline age, 9.9 years; 53% men; 76% White) at 22 US sites enrolled in the Adolescent Brain Cognitive Development (ABCD) Study that’s examining brain and behavioral development from middle childhood to young adulthood.

The researchers collected information on the use of alcohol, nicotine, cannabis, and other illicit substances from in-person interviews at baseline and years 1, 2, and 3, as well as interim phone interviews at 6, 18, and 30 months. MRI scans provided extensive brain structural data, including global and regional cortical volume, thickness, surface area, sulcal depth, and subcortical volume.

Of the total, 3460 participants (35%) initiated substance use before age 15, with 90% reporting alcohol use initiation. There was considerable overlap between initiation of alcohol, nicotine, and cannabis.

The researchers tested whether baseline neuroanatomical variability was associated with any substance use initiation before or up to 3 years following initial neuroimaging scans. Study covariates included baseline age, sex, pubertal status, familial relationship (eg, sibling or twin), and prenatal substance exposures. Researchers didn’t control for sociodemographic characteristics as these could influence associations.

 

Significant Brain Differences

Compared with no substance use initiation, any substance use initiation was associated with larger global neuroanatomical indices, including whole brain (beta = 0.05; P = 2.80 × 10^–8), total intracranial (beta = 0.04; P = 3.49 × 10⁻⁶), cortical (beta = 0.05; P = 4.31 × 10^–8), and subcortical volumes (beta = 0.05; P = 4.39 × 10^–8), as well as greater total cortical surface area (beta = 0.04; P = 6.05 × 10^–7).

The direction of associations between cortical thickness and substance use initiation was regionally specific; any substance use initiation was characterized by thinner cortex in all frontal regions (eg, rostral middle frontal gyrus, beta = −0.03; P = 6.99 × 10^–6), but thicker cortex in all other lobes. It was also associated with larger regional brain volumes, deeper regional sulci, and differences in regional cortical surface area.

The authors noted total cortical thickness peaks at age 1.7 years and steadily declines throughout life. By contrast, subcortical volumes peak at 14.4 years of age and generally remain stable before steep later life declines.

Secondary analyses compared initiation of the three most commonly used substances in early adolescence (alcohol, nicotine, and cannabis) with no substance use.

Findings for alcohol largely mirrored those for any substance use. However, the study uncovered additional significant associations, including greater left lateral occipital volume and bilateral para-hippocampal gyri cortical thickness and less bilateral superior frontal gyri cortical thickness.

Nicotine use was associated with lower right superior frontal gyrus volume and deeper left lateral orbitofrontal cortex sulci. And cannabis use was associated with thinner left precentral gyrus and lower right inferior parietal gyrus and right caudate volumes.

The authors noted results for nicotine and cannabis may not have had adequate statistical power, and small effects suggest these findings aren’t clinically informative for individuals. However, they wrote, “They do inform and challenge current theoretical models of addiction.”

 

Associations Precede Substance Use

A post hoc analysis further challenges current models of addiction. When researchers looked only at the 1203 youth who initiated substance use after the baseline neuroimaging session, they found most associations preceded substance use.

“That regional associations may precede substance use initiation, including less cortical thickness in the right rostral middle frontal gyrus, challenges predominant interpretations that these associations arise largely due to neurotoxic consequences of exposure and increases the plausibility that these features may, at least partially, reflect markers of predispositional risk,” wrote the authors.

A study limitation was that unmeasured confounders and undetected systemic differences in missing data may have influenced associations. Sociodemographic, environmental, and genetic variables that were not included as covariates are likely associated with both neuroanatomical variability and substance use initiation and may moderate associations between them, said the authors.

The ABCD Study provides “a robust and large database of longitudinal data” that goes beyond previous neuroimaging research “to understand the bidirectional relationship between brain structure and substance use,” Miller said in a press release.

“The hope is that these types of studies, in conjunction with other data on environmental exposures and genetic risk, could help change how we think about the development of substance use disorders and inform more accurate models of addiction moving forward,” Miller said.

 

Reevaluating Causal Assumptions

In an accompanying editorial, Felix Pichardo, MA, and Sylia Wilson, PhD, from the Institute of Child Development, University of Minnesota, Minneapolis, suggested that it may be time to “reevaluate the causal assumptions that underlie brain disease models of addiction” and the mechanisms by which it develops, persists, and becomes harmful.

Neurotoxic effects of substances are central to current brain disease models of addiction, wrote Pichardo and Wilson. “Substance exposure is thought to affect cortical and subcortical regions that support interrelated systems, resulting in desensitization of reward-related processing, increased stress that prompts cravings, negative emotions when cravings are unsated, and weakening of cognitive control abilities that leads to repeated returns to use.”

The editorial writers praised the ABCD Study for its large sample size for providing a level of precision, statistical accuracy, and ability to identify both larger and smaller effects, which are critical for addiction research.

Unlike most addiction research that relies on cross-sectional designs, the current study used longitudinal assessments, which is another of its strengths, they noted.

“Longitudinal study designs like in the ABCD Study are fundamental for establishing temporal ordering across constructs, which is important because establishing temporal precedence is a key step in determining causal links and underlying mechanisms.”

The inclusion of several genetically informative components, such as the family study design, nested twin subsamples, and DNA collection, “allows researchers to extend beyond temporal precedence toward increased causal inference and identification of mechanisms,” they added.

The study received support from the National Institutes of Health. The study authors and editorial writers had no relevant conflicts of interest.

A version of this article appeared on Medscape.com.

For the third straight year, firearms killed more children and teens than any other cause, including motor vehicle crashes and cancer. The population-wide toll taken by guns is equally as discouraging. Finally, this elephant in the room is getting some attention from the medical community, but the voices asking for change have most recently been coming from medical students who feel that gun violence deserves to be given a larger role in their education. It’s unclear why this plea is coming from the younger end of the medical community. It may be that, unlike most of their older instructors, these 18- to 25-year-olds have grown up under the growing threat of school shootings and become uncomfortably accustomed to active shooter drills.

Should We Look to Medical School for Answers?

There is no question that compared with the rest of this country the medical community needs to take gun violence more seriously. But, does the medical community need to take gun violence more seriously than the rest of the population? What should our response look like? To answer those questions we need to take several steps back to view the bigger picture.

Is the medical community more responsible for this current situation than any other segment of the population? Do physicians bear any more culpability than publishers who sell gun-related magazines? Since its inception pediatrics has taken on the role of advocate for children and their health and well-being. But, is there more we can and should do other than turn up the volume on our advocacy? 

While still taking the longer view, let’s ask ourselves what the role of medical school should be. Not just with respect to gun violence but in producing physicians and healthcare providers. We are approaching a crisis in primary care as it loses appeal with physicians at both ends of the age continuum. It could be because it pays poorly — certainly in relation to the cost of medical school — or because the awareness that if done well primary care requires a commitment that is difficult to square with many individuals’ lifestyle expectations. 

Is the traditional medical school the right place to be training primary care providers? Medical school is currently aimed at broad and deep exposure. The student will be exposed to the all the diseases to which he or she might be seeing anywhere in the world and at the same time will have learned the mechanisms down to the cellular level that lies behind that pathology. Does a primary care pediatrician practicing in a small city or suburbia need that depth of training? He or she might benefit from some breadth. But maybe it should be focused on socioeconomic and geographic population the doctor is likely to see. This is particularly true for gun-related deaths.

Returning our attention to gun violence and its relation to healthcare, let’s ask ourselves what role the traditional medical school should play. Should it be a breeding ground for gun control advocates? When physicians speak people tend to listen but our effectiveness on issues such as immunizations and gun control has not been what many have hoped for. The supply of guns available to the public in this country is staggering and certainly contributes to gun-related injuries and death. However, I’m afraid that making a significant dent in that supply, given our political history and current climate, is an issue whose ship has sailed.

On the other hand, as gun advocates are often quoted as saying, “it’s not guns that kill, it’s people.” We don’t need to go into to the fallacy of this argument, but it gives us a starting point from which a medical school might focus its efforts on addressing the fallout from gun violence. A curriculum that begins with a presentation of the grizzly statistics and moves on to research about gun-related mental health issues and the social environments that breed violence makes good sense. Recanting the depressing history of how our society got to this place, in which guns outnumber people, should be part of the undergraduate curriculum.

Addressing the specifics of gun safety and suicide prevention in general with families and individuals would be more appropriate during clinical specialty training. 

How big a chunk of the curriculum should be committed to gun violence and its fallout? Some of the call for change seems to be suggesting a semester-long course. However, we must accept the reality that instructional time in medical school is a finite asset. Although gunshots are the leading cause of death in children, how effective will even the most cleverly crafted curriculum be in moving the needle on the embarrassing data?

Given what is known about the problem, a day, or at most a week would be sufficient in class time. This could include personal presentations by victims or family members. I’m sure there are some who would see that as insufficient. But I see it as realistic. For the large urban schools, observing an evening shift in the trauma unit of an ER could be a potent addition.

Beyond this, a commitment by the school to host seminars and workshops devoted to gun violence could be an important component. It might also be helpful for a school or training program to promote the habit of whenever an instructor is introducing a potentially fatal disease to the students for the first time, he or she would begin with “To put this in perspective, you should remember that xxx thousand children die of gunshot wounds every year.” 

Unfortunately, like obesity, gun-related deaths and injuries are the result of our society’s failure to muster the political will to act in our best interest as a nation. The medical community is left to clean up the collateral damage. There is always more that we could do, but we must be thoughtful in how we invest our energies in the effort.

Wilkoff practiced primary care pediatrics in Brunswick, Maine, for nearly 40 years. He has authored several books on behavioral pediatrics, including “How to Say No to Your Toddler.” Other than a Littman stethoscope he accepted as a first-year medical student in 1966, Dr. Wilkoff reports having nothing to disclose. Email him at [email protected]. 

For the third straight year, firearms killed more children and teens than any other cause, including motor vehicle crashes and cancer. The population-wide toll taken by guns is equally as discouraging. Finally, this elephant in the room is getting some attention from the medical community, but the voices asking for change have most recently been coming from medical students who feel that gun violence deserves to be given a larger role in their education. It’s unclear why this plea is coming from the younger end of the medical community. It may be that, unlike most of their older instructors, these 18- to 25-year-olds have grown up under the growing threat of school shootings and become uncomfortably accustomed to active shooter drills.

Should We Look to Medical School for Answers?

There is no question that compared with the rest of this country the medical community needs to take gun violence more seriously. But, does the medical community need to take gun violence more seriously than the rest of the population? What should our response look like? To answer those questions we need to take several steps back to view the bigger picture.

Is the medical community more responsible for this current situation than any other segment of the population? Do physicians bear any more culpability than publishers who sell gun-related magazines? Since its inception pediatrics has taken on the role of advocate for children and their health and well-being. But, is there more we can and should do other than turn up the volume on our advocacy? 

While still taking the longer view, let’s ask ourselves what the role of medical school should be. Not just with respect to gun violence but in producing physicians and healthcare providers. We are approaching a crisis in primary care as it loses appeal with physicians at both ends of the age continuum. It could be because it pays poorly — certainly in relation to the cost of medical school — or because the awareness that if done well primary care requires a commitment that is difficult to square with many individuals’ lifestyle expectations. 

Is the traditional medical school the right place to be training primary care providers? Medical school is currently aimed at broad and deep exposure. The student will be exposed to the all the diseases to which he or she might be seeing anywhere in the world and at the same time will have learned the mechanisms down to the cellular level that lies behind that pathology. Does a primary care pediatrician practicing in a small city or suburbia need that depth of training? He or she might benefit from some breadth. But maybe it should be focused on socioeconomic and geographic population the doctor is likely to see. This is particularly true for gun-related deaths.

Returning our attention to gun violence and its relation to healthcare, let’s ask ourselves what role the traditional medical school should play. Should it be a breeding ground for gun control advocates? When physicians speak people tend to listen but our effectiveness on issues such as immunizations and gun control has not been what many have hoped for. The supply of guns available to the public in this country is staggering and certainly contributes to gun-related injuries and death. However, I’m afraid that making a significant dent in that supply, given our political history and current climate, is an issue whose ship has sailed.

On the other hand, as gun advocates are often quoted as saying, “it’s not guns that kill, it’s people.” We don’t need to go into to the fallacy of this argument, but it gives us a starting point from which a medical school might focus its efforts on addressing the fallout from gun violence. A curriculum that begins with a presentation of the grizzly statistics and moves on to research about gun-related mental health issues and the social environments that breed violence makes good sense. Recanting the depressing history of how our society got to this place, in which guns outnumber people, should be part of the undergraduate curriculum.

Addressing the specifics of gun safety and suicide prevention in general with families and individuals would be more appropriate during clinical specialty training. 

How big a chunk of the curriculum should be committed to gun violence and its fallout? Some of the call for change seems to be suggesting a semester-long course. However, we must accept the reality that instructional time in medical school is a finite asset. Although gunshots are the leading cause of death in children, how effective will even the most cleverly crafted curriculum be in moving the needle on the embarrassing data?

Given what is known about the problem, a day, or at most a week would be sufficient in class time. This could include personal presentations by victims or family members. I’m sure there are some who would see that as insufficient. But I see it as realistic. For the large urban schools, observing an evening shift in the trauma unit of an ER could be a potent addition.

Beyond this, a commitment by the school to host seminars and workshops devoted to gun violence could be an important component. It might also be helpful for a school or training program to promote the habit of whenever an instructor is introducing a potentially fatal disease to the students for the first time, he or she would begin with “To put this in perspective, you should remember that xxx thousand children die of gunshot wounds every year.” 

Unfortunately, like obesity, gun-related deaths and injuries are the result of our society’s failure to muster the political will to act in our best interest as a nation. The medical community is left to clean up the collateral damage. There is always more that we could do, but we must be thoughtful in how we invest our energies in the effort.

Wilkoff practiced primary care pediatrics in Brunswick, Maine, for nearly 40 years. He has authored several books on behavioral pediatrics, including “How to Say No to Your Toddler.” Other than a Littman stethoscope he accepted as a first-year medical student in 1966, Dr. Wilkoff reports having nothing to disclose. Email him at [email protected]. 

For the third straight year, firearms killed more children and teens than any other cause, including motor vehicle crashes and cancer. The population-wide toll taken by guns is equally as discouraging. Finally, this elephant in the room is getting some attention from the medical community, but the voices asking for change have most recently been coming from medical students who feel that gun violence deserves to be given a larger role in their education. It’s unclear why this plea is coming from the younger end of the medical community. It may be that, unlike most of their older instructors, these 18- to 25-year-olds have grown up under the growing threat of school shootings and become uncomfortably accustomed to active shooter drills.

Should We Look to Medical School for Answers?

There is no question that compared with the rest of this country the medical community needs to take gun violence more seriously. But, does the medical community need to take gun violence more seriously than the rest of the population? What should our response look like? To answer those questions we need to take several steps back to view the bigger picture.

Is the medical community more responsible for this current situation than any other segment of the population? Do physicians bear any more culpability than publishers who sell gun-related magazines? Since its inception pediatrics has taken on the role of advocate for children and their health and well-being. But, is there more we can and should do other than turn up the volume on our advocacy? 

While still taking the longer view, let’s ask ourselves what the role of medical school should be. Not just with respect to gun violence but in producing physicians and healthcare providers. We are approaching a crisis in primary care as it loses appeal with physicians at both ends of the age continuum. It could be because it pays poorly — certainly in relation to the cost of medical school — or because the awareness that if done well primary care requires a commitment that is difficult to square with many individuals’ lifestyle expectations. 

Is the traditional medical school the right place to be training primary care providers? Medical school is currently aimed at broad and deep exposure. The student will be exposed to the all the diseases to which he or she might be seeing anywhere in the world and at the same time will have learned the mechanisms down to the cellular level that lies behind that pathology. Does a primary care pediatrician practicing in a small city or suburbia need that depth of training? He or she might benefit from some breadth. But maybe it should be focused on socioeconomic and geographic population the doctor is likely to see. This is particularly true for gun-related deaths.

Returning our attention to gun violence and its relation to healthcare, let’s ask ourselves what role the traditional medical school should play. Should it be a breeding ground for gun control advocates? When physicians speak people tend to listen but our effectiveness on issues such as immunizations and gun control has not been what many have hoped for. The supply of guns available to the public in this country is staggering and certainly contributes to gun-related injuries and death. However, I’m afraid that making a significant dent in that supply, given our political history and current climate, is an issue whose ship has sailed.

On the other hand, as gun advocates are often quoted as saying, “it’s not guns that kill, it’s people.” We don’t need to go into to the fallacy of this argument, but it gives us a starting point from which a medical school might focus its efforts on addressing the fallout from gun violence. A curriculum that begins with a presentation of the grizzly statistics and moves on to research about gun-related mental health issues and the social environments that breed violence makes good sense. Recanting the depressing history of how our society got to this place, in which guns outnumber people, should be part of the undergraduate curriculum.

Addressing the specifics of gun safety and suicide prevention in general with families and individuals would be more appropriate during clinical specialty training. 

How big a chunk of the curriculum should be committed to gun violence and its fallout? Some of the call for change seems to be suggesting a semester-long course. However, we must accept the reality that instructional time in medical school is a finite asset. Although gunshots are the leading cause of death in children, how effective will even the most cleverly crafted curriculum be in moving the needle on the embarrassing data?

Given what is known about the problem, a day, or at most a week would be sufficient in class time. This could include personal presentations by victims or family members. I’m sure there are some who would see that as insufficient. But I see it as realistic. For the large urban schools, observing an evening shift in the trauma unit of an ER could be a potent addition.

Beyond this, a commitment by the school to host seminars and workshops devoted to gun violence could be an important component. It might also be helpful for a school or training program to promote the habit of whenever an instructor is introducing a potentially fatal disease to the students for the first time, he or she would begin with “To put this in perspective, you should remember that xxx thousand children die of gunshot wounds every year.” 

Unfortunately, like obesity, gun-related deaths and injuries are the result of our society’s failure to muster the political will to act in our best interest as a nation. The medical community is left to clean up the collateral damage. There is always more that we could do, but we must be thoughtful in how we invest our energies in the effort.

Wilkoff practiced primary care pediatrics in Brunswick, Maine, for nearly 40 years. He has authored several books on behavioral pediatrics, including “How to Say No to Your Toddler.” Other than a Littman stethoscope he accepted as a first-year medical student in 1966, Dr. Wilkoff reports having nothing to disclose. Email him at [email protected]. 

Recently, a 40-year-old woman took to Facebook to announce that she had died.

Rachel Davies, of Wales, wrote: “If you’re reading this, then it means I’m no longer here. What a life I’ve had, and surprisingly, since cancer entered my life. When I look through my photos, I’ve done and seen so much since cancer, and probably some of my best memories are from this period. In so many ways, I have to thank it for learning how to live fully. What I wish is that everyone can experience the same but without needing cancer. Get out there, experience life fully, and wear that dress!!! I’m so sad to leave my family and friends, I wish I never had to go. I’m so grateful to have had Charlie young so that I’ve watched him grow into the man he is today. I’m unbelievably proud of him. I am thankful I had the opportunity to have Kacey and Jacob in my life. Lastly, I was blessed to meet the love of my life, my husband, and my best friend. I have no regrets, I have had a wonderful life. So to all of you, don’t be sad I’ve gone. Live your life and live it well. Love, Rachel x.”

 

I didn’t know Ms. Davies, but am likely among many who wish I had. In a terrible situation she kept trying.

She had HER2 metastatic breast cancer, which can respond to the drug Enhertu (trastuzumab). Unfortunately, she never had the chance, because it wasn’t available to her in Wales. In the United Kingdom it’s available only in Scotland.

I’m not saying it was a cure. Statistically, it likely would have bought her another 6 months of family time. But that’s still another half year.

I’m not blaming the Welsh NHS, though they made the decision not to cover it because of cost. The jobs of such committees is a thankless one, trying to decide where the limited money goes — vaccines for many children that are proven to lessen morbidity and mortality over the course of a lifetime, or to add 6 months to the lives of comparatively fewer women with HER2 metastatic breast cancer.

I’m not blaming the company that makes Enhertu, though it was the cost that kept her from getting it. Bringing a drug to market, with all the labs and clinical research behind it, ain’t cheap. If the company can’t keep the lights on they’re not going to able to develop future pharmaceuticals to help others, though I do wonder if a better price could have been negotiated. (I’m not trying to justify the salaries of insurance CEOs — don’t even get me started on those.)

Money is always limited, and human suffering is infinite. Every health care organization, public or private, has to face that simple fact. There is no right place to draw the line, so we use the greatest good for the greatest many as our best guess.

In her last post, though, Ms. Davies didn’t dwell on any of this. She reflected on her joys and blessings, and encouraged others to live life fully. Things we should all focus on.

In a world that often seems to have gone mad, it’s good to keep in mind that there is more good than bad out there. 

Thank you, Ms. Davies, for the reminder.

Allan M. Block, MD, has a solo neurology practice in Scottsdale, Arizona.

Recently, a 40-year-old woman took to Facebook to announce that she had died.

Rachel Davies, of Wales, wrote: “If you’re reading this, then it means I’m no longer here. What a life I’ve had, and surprisingly, since cancer entered my life. When I look through my photos, I’ve done and seen so much since cancer, and probably some of my best memories are from this period. In so many ways, I have to thank it for learning how to live fully. What I wish is that everyone can experience the same but without needing cancer. Get out there, experience life fully, and wear that dress!!! I’m so sad to leave my family and friends, I wish I never had to go. I’m so grateful to have had Charlie young so that I’ve watched him grow into the man he is today. I’m unbelievably proud of him. I am thankful I had the opportunity to have Kacey and Jacob in my life. Lastly, I was blessed to meet the love of my life, my husband, and my best friend. I have no regrets, I have had a wonderful life. So to all of you, don’t be sad I’ve gone. Live your life and live it well. Love, Rachel x.”

 

I didn’t know Ms. Davies, but am likely among many who wish I had. In a terrible situation she kept trying.

She had HER2 metastatic breast cancer, which can respond to the drug Enhertu (trastuzumab). Unfortunately, she never had the chance, because it wasn’t available to her in Wales. In the United Kingdom it’s available only in Scotland.

I’m not saying it was a cure. Statistically, it likely would have bought her another 6 months of family time. But that’s still another half year.

I’m not blaming the Welsh NHS, though they made the decision not to cover it because of cost. The jobs of such committees is a thankless one, trying to decide where the limited money goes — vaccines for many children that are proven to lessen morbidity and mortality over the course of a lifetime, or to add 6 months to the lives of comparatively fewer women with HER2 metastatic breast cancer.

I’m not blaming the company that makes Enhertu, though it was the cost that kept her from getting it. Bringing a drug to market, with all the labs and clinical research behind it, ain’t cheap. If the company can’t keep the lights on they’re not going to able to develop future pharmaceuticals to help others, though I do wonder if a better price could have been negotiated. (I’m not trying to justify the salaries of insurance CEOs — don’t even get me started on those.)

Money is always limited, and human suffering is infinite. Every health care organization, public or private, has to face that simple fact. There is no right place to draw the line, so we use the greatest good for the greatest many as our best guess.

In her last post, though, Ms. Davies didn’t dwell on any of this. She reflected on her joys and blessings, and encouraged others to live life fully. Things we should all focus on.

In a world that often seems to have gone mad, it’s good to keep in mind that there is more good than bad out there. 

Thank you, Ms. Davies, for the reminder.

Allan M. Block, MD, has a solo neurology practice in Scottsdale, Arizona.

Recently, a 40-year-old woman took to Facebook to announce that she had died.

Rachel Davies, of Wales, wrote: “If you’re reading this, then it means I’m no longer here. What a life I’ve had, and surprisingly, since cancer entered my life. When I look through my photos, I’ve done and seen so much since cancer, and probably some of my best memories are from this period. In so many ways, I have to thank it for learning how to live fully. What I wish is that everyone can experience the same but without needing cancer. Get out there, experience life fully, and wear that dress!!! I’m so sad to leave my family and friends, I wish I never had to go. I’m so grateful to have had Charlie young so that I’ve watched him grow into the man he is today. I’m unbelievably proud of him. I am thankful I had the opportunity to have Kacey and Jacob in my life. Lastly, I was blessed to meet the love of my life, my husband, and my best friend. I have no regrets, I have had a wonderful life. So to all of you, don’t be sad I’ve gone. Live your life and live it well. Love, Rachel x.”

 

I didn’t know Ms. Davies, but am likely among many who wish I had. In a terrible situation she kept trying.

She had HER2 metastatic breast cancer, which can respond to the drug Enhertu (trastuzumab). Unfortunately, she never had the chance, because it wasn’t available to her in Wales. In the United Kingdom it’s available only in Scotland.

I’m not saying it was a cure. Statistically, it likely would have bought her another 6 months of family time. But that’s still another half year.

I’m not blaming the Welsh NHS, though they made the decision not to cover it because of cost. The jobs of such committees is a thankless one, trying to decide where the limited money goes — vaccines for many children that are proven to lessen morbidity and mortality over the course of a lifetime, or to add 6 months to the lives of comparatively fewer women with HER2 metastatic breast cancer.

I’m not blaming the company that makes Enhertu, though it was the cost that kept her from getting it. Bringing a drug to market, with all the labs and clinical research behind it, ain’t cheap. If the company can’t keep the lights on they’re not going to able to develop future pharmaceuticals to help others, though I do wonder if a better price could have been negotiated. (I’m not trying to justify the salaries of insurance CEOs — don’t even get me started on those.)

Money is always limited, and human suffering is infinite. Every health care organization, public or private, has to face that simple fact. There is no right place to draw the line, so we use the greatest good for the greatest many as our best guess.

In her last post, though, Ms. Davies didn’t dwell on any of this. She reflected on her joys and blessings, and encouraged others to live life fully. Things we should all focus on.

In a world that often seems to have gone mad, it’s good to keep in mind that there is more good than bad out there. 

Thank you, Ms. Davies, for the reminder.

Allan M. Block, MD, has a solo neurology practice in Scottsdale, Arizona.

TOPLINE:

Fragmented sleep — that is, increased wakefulness and reduced sleep efficiency — is a sign of metabolic dysfunction–associated steatotic liver disease (MASLD), a study using actigraphy showed.

METHODOLOGY:

• Researchers assessed sleep-wake rhythms in 35 patients with MASLD (median age, 58 years; 66% were men; 80% with metabolic syndrome) and 16 matched healthy controls (median age, 61 years; 50% were men) using data collected 24/7 via actigraphy for 4 weeks.
• Sub-analyses were conducted with MASLD comparator groups: 16 patients with MASH, 8 with MASH with cirrhosis, and 11 with non-MASH–related cirrhosis.
• All participants visited the clinic at baseline, week 2, and week 4 to undergo a clinical investigation and complete questionnaires about their sleep.
• A standardized sleep hygiene education session was conducted at week 2.

TAKEAWAY:

• Actigraphy data from patients with MASLD did not reveal significant differences in bedtime, sleep-onset latency, sleep duration, wake-up time, or time in bed compared with controls.
• However, compared with controls, those with MASLD woke 55% more often at night (8.5 vs 5.5), lay awake 113% longer after having first fallen asleep (45.4 minutes vs 21.3 minutes), and slept more often and longer during the day (decreased sleep efficiency).
• Subgroup analyses showed that actigraphy-measured sleep patterns and quality were similarly impaired in patients with MASH, MASH with cirrhosis, and non–MASH-related cirrhosis.
• Patients with MASLD self-reported their fragmented sleep as shorter sleep with a delayed onset. In sleep diaries, 32% of patients with MASLD reported sleep disturbances caused by psychological stress, compared with only 6.25% of controls and 9% of patients with cirrhosis.
• The sleep education session did not change the actigraphy measures or the sleep parameters assessed with sleep questionnaires at the end of the study.

IN PRACTICE:

“We concluded from our data that sleep fragmentation plays a role in the pathogenesis of human MASLD. Whether MASLD causes sleep disorders or vice versa remains unknown. The underlying mechanism presumably involves genetics, environmental factors, and the activation of immune responses — ultimately driven by obesity and metabolic syndrome,” said corresponding author.

SOURCE:

The study, led by Sofia Schaeffer, PhD, University of Basel, Switzerland, was published online in Frontiers in Network Physiology.

LIMITATIONS:

The study had several limitations. There was a significant difference in body mass index between patients with MASLD (median, 31) and controls (median, 23.5), representing a potential confounder that could explain the differences in sleep behavior. Undetected obstructive sleep apnea could also be a confounding factor. The small number of participants limited the interpretation and generalization of the data, especially in the MASLD subgroups.

DISCLOSURES:

This study was supported by a grant from the University of Basel. One coauthor received a research grant from the University Center for Gastrointestinal and Liver Diseases, Basel, Switzerland. Another coauthor was employed by NovoLytiX. Schaeffer and the remaining coauthors declared that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

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

TOPLINE:

Fragmented sleep — that is, increased wakefulness and reduced sleep efficiency — is a sign of metabolic dysfunction–associated steatotic liver disease (MASLD), a study using actigraphy showed.

METHODOLOGY:

• Researchers assessed sleep-wake rhythms in 35 patients with MASLD (median age, 58 years; 66% were men; 80% with metabolic syndrome) and 16 matched healthy controls (median age, 61 years; 50% were men) using data collected 24/7 via actigraphy for 4 weeks.
• Sub-analyses were conducted with MASLD comparator groups: 16 patients with MASH, 8 with MASH with cirrhosis, and 11 with non-MASH–related cirrhosis.
• All participants visited the clinic at baseline, week 2, and week 4 to undergo a clinical investigation and complete questionnaires about their sleep.
• A standardized sleep hygiene education session was conducted at week 2.

TAKEAWAY:

• Actigraphy data from patients with MASLD did not reveal significant differences in bedtime, sleep-onset latency, sleep duration, wake-up time, or time in bed compared with controls.
• However, compared with controls, those with MASLD woke 55% more often at night (8.5 vs 5.5), lay awake 113% longer after having first fallen asleep (45.4 minutes vs 21.3 minutes), and slept more often and longer during the day (decreased sleep efficiency).
• Subgroup analyses showed that actigraphy-measured sleep patterns and quality were similarly impaired in patients with MASH, MASH with cirrhosis, and non–MASH-related cirrhosis.
• Patients with MASLD self-reported their fragmented sleep as shorter sleep with a delayed onset. In sleep diaries, 32% of patients with MASLD reported sleep disturbances caused by psychological stress, compared with only 6.25% of controls and 9% of patients with cirrhosis.
• The sleep education session did not change the actigraphy measures or the sleep parameters assessed with sleep questionnaires at the end of the study.

IN PRACTICE:

“We concluded from our data that sleep fragmentation plays a role in the pathogenesis of human MASLD. Whether MASLD causes sleep disorders or vice versa remains unknown. The underlying mechanism presumably involves genetics, environmental factors, and the activation of immune responses — ultimately driven by obesity and metabolic syndrome,” said corresponding author.

SOURCE:

The study, led by Sofia Schaeffer, PhD, University of Basel, Switzerland, was published online in Frontiers in Network Physiology.

LIMITATIONS:

The study had several limitations. There was a significant difference in body mass index between patients with MASLD (median, 31) and controls (median, 23.5), representing a potential confounder that could explain the differences in sleep behavior. Undetected obstructive sleep apnea could also be a confounding factor. The small number of participants limited the interpretation and generalization of the data, especially in the MASLD subgroups.

DISCLOSURES:

This study was supported by a grant from the University of Basel. One coauthor received a research grant from the University Center for Gastrointestinal and Liver Diseases, Basel, Switzerland. Another coauthor was employed by NovoLytiX. Schaeffer and the remaining coauthors declared that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

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

TOPLINE:

Fragmented sleep — that is, increased wakefulness and reduced sleep efficiency — is a sign of metabolic dysfunction–associated steatotic liver disease (MASLD), a study using actigraphy showed.

METHODOLOGY:

• Researchers assessed sleep-wake rhythms in 35 patients with MASLD (median age, 58 years; 66% were men; 80% with metabolic syndrome) and 16 matched healthy controls (median age, 61 years; 50% were men) using data collected 24/7 via actigraphy for 4 weeks.
• Sub-analyses were conducted with MASLD comparator groups: 16 patients with MASH, 8 with MASH with cirrhosis, and 11 with non-MASH–related cirrhosis.
• All participants visited the clinic at baseline, week 2, and week 4 to undergo a clinical investigation and complete questionnaires about their sleep.
• A standardized sleep hygiene education session was conducted at week 2.

TAKEAWAY:

• Actigraphy data from patients with MASLD did not reveal significant differences in bedtime, sleep-onset latency, sleep duration, wake-up time, or time in bed compared with controls.
• However, compared with controls, those with MASLD woke 55% more often at night (8.5 vs 5.5), lay awake 113% longer after having first fallen asleep (45.4 minutes vs 21.3 minutes), and slept more often and longer during the day (decreased sleep efficiency).
• Subgroup analyses showed that actigraphy-measured sleep patterns and quality were similarly impaired in patients with MASH, MASH with cirrhosis, and non–MASH-related cirrhosis.
• Patients with MASLD self-reported their fragmented sleep as shorter sleep with a delayed onset. In sleep diaries, 32% of patients with MASLD reported sleep disturbances caused by psychological stress, compared with only 6.25% of controls and 9% of patients with cirrhosis.
• The sleep education session did not change the actigraphy measures or the sleep parameters assessed with sleep questionnaires at the end of the study.

IN PRACTICE:

“We concluded from our data that sleep fragmentation plays a role in the pathogenesis of human MASLD. Whether MASLD causes sleep disorders or vice versa remains unknown. The underlying mechanism presumably involves genetics, environmental factors, and the activation of immune responses — ultimately driven by obesity and metabolic syndrome,” said corresponding author.

SOURCE:

The study, led by Sofia Schaeffer, PhD, University of Basel, Switzerland, was published online in Frontiers in Network Physiology.

LIMITATIONS:

The study had several limitations. There was a significant difference in body mass index between patients with MASLD (median, 31) and controls (median, 23.5), representing a potential confounder that could explain the differences in sleep behavior. Undetected obstructive sleep apnea could also be a confounding factor. The small number of participants limited the interpretation and generalization of the data, especially in the MASLD subgroups.

DISCLOSURES:

This study was supported by a grant from the University of Basel. One coauthor received a research grant from the University Center for Gastrointestinal and Liver Diseases, Basel, Switzerland. Another coauthor was employed by NovoLytiX. Schaeffer and the remaining coauthors declared that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

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

TOPLINE:

A program combining theoretical training with free disposal containers can effectively increase knowledge and improve sharps waste disposal practices among patients with diabetes.

METHODOLOGY:

• A significant number of patients with diabetes administer insulin at home. Unsafe waste disposal including insulin pens, syringes, and lancets increases the risk for needle-stick injuries, microbial infections, and plastic waste accumulation, highlighting the need for safe disposal practices.
• Researchers conducted an experimental study at El-Horraya Polyclinic in Alexandria, Egypt, between November 2022 and April 2023 to evaluate the effectiveness of an intervention program in improving knowledge and practices related to safe sharps disposal among patients with diabetes.
• Overall, 100 patients (median age, 61 years; 92% living in urban areas) with either type 1 or type 2 diabetes were recruited and divided into the educational intervention (n = 50) and nonintervention (n = 50) groups; majority (67%) had diabetes for more than 10 years.
• The intervention group received educational sessions addressing improper disposal risks and environmental impacts along with practical demonstrations of correct sharps disposal methods; they were also given free puncture-resistant containers to safely dispose of the sharp waste generated from diabetes management.
• Assessments were performed at baseline, 2 months, and 4 months postintervention, evaluating knowledge levels (poor: < 50%, fair: 50% to < 70%, good: 70%-100%) and practice scores (poor: 0-6, fair: 7-10, good: 11-14).

TAKEAWAY:

• Overall, 58% of the patients used insulin pens, and approximately 75% required two doses of insulin daily.
• The median monthly disposal was 10 syringes per patient among syringe users and eight pen needles per patient among pen users.
• At baseline, there were no differences in the knowledge scores between the intervention and nonintervention groups; however, at both 2 and 4 months, the intervention group showed a significantly higher median knowledge score than the nonintervention group (P < .001 for both).
• Likewise, practice scores also showed marked improvements in the intervention group, compared with the nonintervention group at the end of the program (P < .001).

IN PRACTICE:

“The success of the environmental education program underscores the need for targeted interventions to enhance patient knowledge and safe sharps disposal practices. By offering accessible disposal options and raising awareness, healthcare facilities can significantly contribute to preventing accidental needle-stick injuries and reducing the risk of infectious disease transmission,” the authors wrote.

SOURCE:

This study was led by Hossam Mohamed Hassan Soliman, High Institute of Public Health, Alexandria University, Egypt. It was published online in Scientific Reports.

LIMITATIONS:

Interview bias and self-reporting bias in data collection were major limitations of this study. The quasi-experimental design, lacking randomization, may have limited the strength of causal inferences.

DISCLOSURES:

No funding was received for this study, and the authors reported no relevant conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

A program combining theoretical training with free disposal containers can effectively increase knowledge and improve sharps waste disposal practices among patients with diabetes.

METHODOLOGY:

• A significant number of patients with diabetes administer insulin at home. Unsafe waste disposal including insulin pens, syringes, and lancets increases the risk for needle-stick injuries, microbial infections, and plastic waste accumulation, highlighting the need for safe disposal practices.
• Researchers conducted an experimental study at El-Horraya Polyclinic in Alexandria, Egypt, between November 2022 and April 2023 to evaluate the effectiveness of an intervention program in improving knowledge and practices related to safe sharps disposal among patients with diabetes.
• Overall, 100 patients (median age, 61 years; 92% living in urban areas) with either type 1 or type 2 diabetes were recruited and divided into the educational intervention (n = 50) and nonintervention (n = 50) groups; majority (67%) had diabetes for more than 10 years.
• The intervention group received educational sessions addressing improper disposal risks and environmental impacts along with practical demonstrations of correct sharps disposal methods; they were also given free puncture-resistant containers to safely dispose of the sharp waste generated from diabetes management.
• Assessments were performed at baseline, 2 months, and 4 months postintervention, evaluating knowledge levels (poor: < 50%, fair: 50% to < 70%, good: 70%-100%) and practice scores (poor: 0-6, fair: 7-10, good: 11-14).

TAKEAWAY:

• Overall, 58% of the patients used insulin pens, and approximately 75% required two doses of insulin daily.
• The median monthly disposal was 10 syringes per patient among syringe users and eight pen needles per patient among pen users.
• At baseline, there were no differences in the knowledge scores between the intervention and nonintervention groups; however, at both 2 and 4 months, the intervention group showed a significantly higher median knowledge score than the nonintervention group (P < .001 for both).
• Likewise, practice scores also showed marked improvements in the intervention group, compared with the nonintervention group at the end of the program (P < .001).

IN PRACTICE:

“The success of the environmental education program underscores the need for targeted interventions to enhance patient knowledge and safe sharps disposal practices. By offering accessible disposal options and raising awareness, healthcare facilities can significantly contribute to preventing accidental needle-stick injuries and reducing the risk of infectious disease transmission,” the authors wrote.

SOURCE:

This study was led by Hossam Mohamed Hassan Soliman, High Institute of Public Health, Alexandria University, Egypt. It was published online in Scientific Reports.

LIMITATIONS:

Interview bias and self-reporting bias in data collection were major limitations of this study. The quasi-experimental design, lacking randomization, may have limited the strength of causal inferences.

DISCLOSURES:

No funding was received for this study, and the authors reported no relevant conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

A program combining theoretical training with free disposal containers can effectively increase knowledge and improve sharps waste disposal practices among patients with diabetes.

METHODOLOGY:

• A significant number of patients with diabetes administer insulin at home. Unsafe waste disposal including insulin pens, syringes, and lancets increases the risk for needle-stick injuries, microbial infections, and plastic waste accumulation, highlighting the need for safe disposal practices.
• Researchers conducted an experimental study at El-Horraya Polyclinic in Alexandria, Egypt, between November 2022 and April 2023 to evaluate the effectiveness of an intervention program in improving knowledge and practices related to safe sharps disposal among patients with diabetes.
• Overall, 100 patients (median age, 61 years; 92% living in urban areas) with either type 1 or type 2 diabetes were recruited and divided into the educational intervention (n = 50) and nonintervention (n = 50) groups; majority (67%) had diabetes for more than 10 years.
• The intervention group received educational sessions addressing improper disposal risks and environmental impacts along with practical demonstrations of correct sharps disposal methods; they were also given free puncture-resistant containers to safely dispose of the sharp waste generated from diabetes management.
• Assessments were performed at baseline, 2 months, and 4 months postintervention, evaluating knowledge levels (poor: < 50%, fair: 50% to < 70%, good: 70%-100%) and practice scores (poor: 0-6, fair: 7-10, good: 11-14).

TAKEAWAY:

• Overall, 58% of the patients used insulin pens, and approximately 75% required two doses of insulin daily.
• The median monthly disposal was 10 syringes per patient among syringe users and eight pen needles per patient among pen users.
• At baseline, there were no differences in the knowledge scores between the intervention and nonintervention groups; however, at both 2 and 4 months, the intervention group showed a significantly higher median knowledge score than the nonintervention group (P < .001 for both).
• Likewise, practice scores also showed marked improvements in the intervention group, compared with the nonintervention group at the end of the program (P < .001).

IN PRACTICE:

“The success of the environmental education program underscores the need for targeted interventions to enhance patient knowledge and safe sharps disposal practices. By offering accessible disposal options and raising awareness, healthcare facilities can significantly contribute to preventing accidental needle-stick injuries and reducing the risk of infectious disease transmission,” the authors wrote.

SOURCE:

This study was led by Hossam Mohamed Hassan Soliman, High Institute of Public Health, Alexandria University, Egypt. It was published online in Scientific Reports.

LIMITATIONS:

Interview bias and self-reporting bias in data collection were major limitations of this study. The quasi-experimental design, lacking randomization, may have limited the strength of causal inferences.

DISCLOSURES:

No funding was received for this study, and the authors reported no relevant conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Stem cell transplantation tames some refractory systemic juvenile idiopathic arthritis–related lung disease that does not respond to other treatment.

METHODOLOGY:

• Retrospective cohort study of 13 children with refractory systemic juvenile idiopathic arthritis–related lung disease (sJIA-LD) who had allogeneic hematopoietic stem cell transplantation (HSCT).
• Children whose median age was 9 years at transplantation underwent HSCT at nine hospitals in the United States and Europe between January 2018 and October 2022, with a median follow-up of 16 months.
• Outcomes included transplant-related complications, pulmonary outcomes (eg, oxygen dependence and chest CT findings), and overall outcomes (eg, complete response, partial response, and death).

TAKEAWAY:

• Five patients developed acute graft vs host disease of varying grades, but none experienced chronic disease.
• All nine surviving patients achieved a complete response at the last follow-up, with no sJIA characteristics or need for immunosuppressive therapy or supplemental oxygen.
• Four patients died from complications including cytomegalovirus pneumonitis (n = 2), intracranial hemorrhage (n = 1), and progressive sJIA-LD (n = 1).
• Of six patients who underwent posttransplant chest CT, three had improved lung health, two had stable lung disease, and one experienced worsening lung disease, ultimately resulting in death.

IN PRACTICE:

“Allogeneic HSCT should be considered for treatment-refractory sJIA-LD,” the authors wrote.

“Efforts are being pursued for earlier recognition of patients with sJIA-LD at risk of adverse reactions to biologics. Early detection should help to avoid repeated treatments that are less effective and possibly deleterious and consider therapeutic approaches (eg, anti–[interleukin]-18 or [interferon]-delta–targeted treatments) that might act as a bridge therapy to control disease activity before HSCT,” wrote the author of an accompanying editorial.

SOURCE:

Michael G. Matt, MD, and Daniel Drozdov, MD, led the study, which was published online on December 20, 2024, in The Lancet Rheumatology.

LIMITATIONS:

Limitations included sampling bias and heterogeneity in clinical follow-up. The small sample size made it difficult to identify variables affecting survival and the achievement of a complete response. Additionally, many patients had relatively short follow-up periods.

DISCLOSURES:

This study was funded by the National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health. Several authors reported receiving advisory board fees, consulting fees, honoraria, grant funds, and stocks and shares from various research institutes and pharmaceutical organizations.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Stem cell transplantation tames some refractory systemic juvenile idiopathic arthritis–related lung disease that does not respond to other treatment.

METHODOLOGY:

• Retrospective cohort study of 13 children with refractory systemic juvenile idiopathic arthritis–related lung disease (sJIA-LD) who had allogeneic hematopoietic stem cell transplantation (HSCT).
• Children whose median age was 9 years at transplantation underwent HSCT at nine hospitals in the United States and Europe between January 2018 and October 2022, with a median follow-up of 16 months.
• Outcomes included transplant-related complications, pulmonary outcomes (eg, oxygen dependence and chest CT findings), and overall outcomes (eg, complete response, partial response, and death).

TAKEAWAY:

• Five patients developed acute graft vs host disease of varying grades, but none experienced chronic disease.
• All nine surviving patients achieved a complete response at the last follow-up, with no sJIA characteristics or need for immunosuppressive therapy or supplemental oxygen.
• Four patients died from complications including cytomegalovirus pneumonitis (n = 2), intracranial hemorrhage (n = 1), and progressive sJIA-LD (n = 1).
• Of six patients who underwent posttransplant chest CT, three had improved lung health, two had stable lung disease, and one experienced worsening lung disease, ultimately resulting in death.

IN PRACTICE:

“Allogeneic HSCT should be considered for treatment-refractory sJIA-LD,” the authors wrote.

“Efforts are being pursued for earlier recognition of patients with sJIA-LD at risk of adverse reactions to biologics. Early detection should help to avoid repeated treatments that are less effective and possibly deleterious and consider therapeutic approaches (eg, anti–[interleukin]-18 or [interferon]-delta–targeted treatments) that might act as a bridge therapy to control disease activity before HSCT,” wrote the author of an accompanying editorial.

SOURCE:

Michael G. Matt, MD, and Daniel Drozdov, MD, led the study, which was published online on December 20, 2024, in The Lancet Rheumatology.

LIMITATIONS:

Limitations included sampling bias and heterogeneity in clinical follow-up. The small sample size made it difficult to identify variables affecting survival and the achievement of a complete response. Additionally, many patients had relatively short follow-up periods.

DISCLOSURES:

This study was funded by the National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health. Several authors reported receiving advisory board fees, consulting fees, honoraria, grant funds, and stocks and shares from various research institutes and pharmaceutical organizations.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Stem cell transplantation tames some refractory systemic juvenile idiopathic arthritis–related lung disease that does not respond to other treatment.

METHODOLOGY:

• Retrospective cohort study of 13 children with refractory systemic juvenile idiopathic arthritis–related lung disease (sJIA-LD) who had allogeneic hematopoietic stem cell transplantation (HSCT).
• Children whose median age was 9 years at transplantation underwent HSCT at nine hospitals in the United States and Europe between January 2018 and October 2022, with a median follow-up of 16 months.
• Outcomes included transplant-related complications, pulmonary outcomes (eg, oxygen dependence and chest CT findings), and overall outcomes (eg, complete response, partial response, and death).

TAKEAWAY:

• Five patients developed acute graft vs host disease of varying grades, but none experienced chronic disease.
• All nine surviving patients achieved a complete response at the last follow-up, with no sJIA characteristics or need for immunosuppressive therapy or supplemental oxygen.
• Four patients died from complications including cytomegalovirus pneumonitis (n = 2), intracranial hemorrhage (n = 1), and progressive sJIA-LD (n = 1).
• Of six patients who underwent posttransplant chest CT, three had improved lung health, two had stable lung disease, and one experienced worsening lung disease, ultimately resulting in death.

IN PRACTICE:

“Allogeneic HSCT should be considered for treatment-refractory sJIA-LD,” the authors wrote.

“Efforts are being pursued for earlier recognition of patients with sJIA-LD at risk of adverse reactions to biologics. Early detection should help to avoid repeated treatments that are less effective and possibly deleterious and consider therapeutic approaches (eg, anti–[interleukin]-18 or [interferon]-delta–targeted treatments) that might act as a bridge therapy to control disease activity before HSCT,” wrote the author of an accompanying editorial.

SOURCE:

Michael G. Matt, MD, and Daniel Drozdov, MD, led the study, which was published online on December 20, 2024, in The Lancet Rheumatology.

LIMITATIONS:

Limitations included sampling bias and heterogeneity in clinical follow-up. The small sample size made it difficult to identify variables affecting survival and the achievement of a complete response. Additionally, many patients had relatively short follow-up periods.

DISCLOSURES:

This study was funded by the National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health. Several authors reported receiving advisory board fees, consulting fees, honoraria, grant funds, and stocks and shares from various research institutes and pharmaceutical organizations.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Combined exposure to dioxins and dioxin-like polychlorinated biphenyls (DL-PCBs) is significantly associated with an increased risk for obesity in adults, with 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin (HpCDD) showing the greatest contribution.

METHODOLOGY:

• Recent evidence has shown that environmental contaminants, particularly dioxins and dioxin-like polychlorinated biphenyls, may be linked to an increased risk for obesity as endocrine-disrupting chemicals.
• Researchers evaluated the relationship between mixed exposure to nine types of dioxins and DL-PCBs and obesity or obesity indices in 852 adults using data from the National Health and Nutrition Examination Survey from 2003 to 2004.
• They chose nine chemicals for analysis: 1,2,3,4,6,7,8-HpCDD; 1,2,3,4,6,7,8,9-octachlorodibenzo-p-dioxin (OCDD); 3,3’,4,4’,5-pentachlorodibenzofuran (PnCB); PCB28; PCB66; PCB74; PCB105; PCB118; and PCB156.
• General and abdominal obesity were present in 34% and 53.9% of participants, respectively.
• Multiple statistical approaches were employed to evaluate the association of exposures to dioxins and DL-PCBs with obesity. Mediation analysis was performed to assess the potential role of A1c in this association.

TAKEAWAY:

• Multivariable logistic regression analysis found that a single exposure to higher concentrations of 1,2,3,4,6,7,8-HpCDD; 1,2,3,4,6,7,8,9-OCDD; 3,3’,4,4’,5-PnCB; PCB74; PCB105; and PCB118 was associated with an increased risk for general and abdominal obesity (P for trend < .001 for all). A stratified analysis by sex found that except for PCB28, PCB66, PCB74, and PCB156, all chemicals were linked to increased general and abdominal obesity risk in both men and women.
• Combined exposure to dioxins and DL-PCBs was positively associated with the risk for obesity, with 1,2,3,4,6,7,8-HpCDD showing the greatest contribution.
• When considering obesity indices, 1,2,3,4,6,7,8,9-OCDD; 1,2,3,4,6,7,8-HpCDD; 3,3’,4,4’,5-PnCB; PCB74; PCB105; and PCB118 were significantly associated with body mass index and waist circumference.
• A1c levels significantly mediated the association between mixed exposure to dioxins and DL-PCBs and obesity (P < .05), with mediation proportions of 6.94% for general obesity and 5.21% for abdominal obesity.

IN PRACTICE:

“Our findings suggested that dioxins and DL-PCBs may be independent risk factors for obesity,” the authors wrote. “The hazards of dioxins on obesity should be emphasized, and additional studies are desirable to elucidate the potential mechanisms for dioxins on obesity in adults.”

SOURCE:

This study, led by Zhao-Xing Gao, Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University and Center for Big Data and Population Health of IHM, both in Hefei, China, was published online in The Journal of Clinical Endocrinology & Metabolism.

LIMITATIONS:

The cross-sectional nature of this study prevented the establishment of causal relationships between dioxins or DL-PCBs and obesity. This study relied on a small sample. Replacing chemical concentrations below the limit of detection with fixed values may have introduced bias.

DISCLOSURES:

This study was funded by grants from the National Natural Science Foundation of China, Research Fund of Anhui Institute of Translational Medicine, and Research Fund of Center for Big Data and Population Health of IHM. The authors declared no conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

Combined exposure to dioxins and dioxin-like polychlorinated biphenyls (DL-PCBs) is significantly associated with an increased risk for obesity in adults, with 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin (HpCDD) showing the greatest contribution.

METHODOLOGY:

• Recent evidence has shown that environmental contaminants, particularly dioxins and dioxin-like polychlorinated biphenyls, may be linked to an increased risk for obesity as endocrine-disrupting chemicals.
• Researchers evaluated the relationship between mixed exposure to nine types of dioxins and DL-PCBs and obesity or obesity indices in 852 adults using data from the National Health and Nutrition Examination Survey from 2003 to 2004.
• They chose nine chemicals for analysis: 1,2,3,4,6,7,8-HpCDD; 1,2,3,4,6,7,8,9-octachlorodibenzo-p-dioxin (OCDD); 3,3’,4,4’,5-pentachlorodibenzofuran (PnCB); PCB28; PCB66; PCB74; PCB105; PCB118; and PCB156.
• General and abdominal obesity were present in 34% and 53.9% of participants, respectively.
• Multiple statistical approaches were employed to evaluate the association of exposures to dioxins and DL-PCBs with obesity. Mediation analysis was performed to assess the potential role of A1c in this association.

TAKEAWAY:

• Multivariable logistic regression analysis found that a single exposure to higher concentrations of 1,2,3,4,6,7,8-HpCDD; 1,2,3,4,6,7,8,9-OCDD; 3,3’,4,4’,5-PnCB; PCB74; PCB105; and PCB118 was associated with an increased risk for general and abdominal obesity (P for trend < .001 for all). A stratified analysis by sex found that except for PCB28, PCB66, PCB74, and PCB156, all chemicals were linked to increased general and abdominal obesity risk in both men and women.
• Combined exposure to dioxins and DL-PCBs was positively associated with the risk for obesity, with 1,2,3,4,6,7,8-HpCDD showing the greatest contribution.
• When considering obesity indices, 1,2,3,4,6,7,8,9-OCDD; 1,2,3,4,6,7,8-HpCDD; 3,3’,4,4’,5-PnCB; PCB74; PCB105; and PCB118 were significantly associated with body mass index and waist circumference.
• A1c levels significantly mediated the association between mixed exposure to dioxins and DL-PCBs and obesity (P < .05), with mediation proportions of 6.94% for general obesity and 5.21% for abdominal obesity.

IN PRACTICE:

“Our findings suggested that dioxins and DL-PCBs may be independent risk factors for obesity,” the authors wrote. “The hazards of dioxins on obesity should be emphasized, and additional studies are desirable to elucidate the potential mechanisms for dioxins on obesity in adults.”

SOURCE:

This study, led by Zhao-Xing Gao, Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University and Center for Big Data and Population Health of IHM, both in Hefei, China, was published online in The Journal of Clinical Endocrinology & Metabolism.

LIMITATIONS:

The cross-sectional nature of this study prevented the establishment of causal relationships between dioxins or DL-PCBs and obesity. This study relied on a small sample. Replacing chemical concentrations below the limit of detection with fixed values may have introduced bias.

DISCLOSURES:

This study was funded by grants from the National Natural Science Foundation of China, Research Fund of Anhui Institute of Translational Medicine, and Research Fund of Center for Big Data and Population Health of IHM. The authors declared no conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

Combined exposure to dioxins and dioxin-like polychlorinated biphenyls (DL-PCBs) is significantly associated with an increased risk for obesity in adults, with 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin (HpCDD) showing the greatest contribution.

METHODOLOGY:

• Recent evidence has shown that environmental contaminants, particularly dioxins and dioxin-like polychlorinated biphenyls, may be linked to an increased risk for obesity as endocrine-disrupting chemicals.
• Researchers evaluated the relationship between mixed exposure to nine types of dioxins and DL-PCBs and obesity or obesity indices in 852 adults using data from the National Health and Nutrition Examination Survey from 2003 to 2004.
• They chose nine chemicals for analysis: 1,2,3,4,6,7,8-HpCDD; 1,2,3,4,6,7,8,9-octachlorodibenzo-p-dioxin (OCDD); 3,3’,4,4’,5-pentachlorodibenzofuran (PnCB); PCB28; PCB66; PCB74; PCB105; PCB118; and PCB156.
• General and abdominal obesity were present in 34% and 53.9% of participants, respectively.
• Multiple statistical approaches were employed to evaluate the association of exposures to dioxins and DL-PCBs with obesity. Mediation analysis was performed to assess the potential role of A1c in this association.

TAKEAWAY:

• Multivariable logistic regression analysis found that a single exposure to higher concentrations of 1,2,3,4,6,7,8-HpCDD; 1,2,3,4,6,7,8,9-OCDD; 3,3’,4,4’,5-PnCB; PCB74; PCB105; and PCB118 was associated with an increased risk for general and abdominal obesity (P for trend < .001 for all). A stratified analysis by sex found that except for PCB28, PCB66, PCB74, and PCB156, all chemicals were linked to increased general and abdominal obesity risk in both men and women.
• Combined exposure to dioxins and DL-PCBs was positively associated with the risk for obesity, with 1,2,3,4,6,7,8-HpCDD showing the greatest contribution.
• When considering obesity indices, 1,2,3,4,6,7,8,9-OCDD; 1,2,3,4,6,7,8-HpCDD; 3,3’,4,4’,5-PnCB; PCB74; PCB105; and PCB118 were significantly associated with body mass index and waist circumference.
• A1c levels significantly mediated the association between mixed exposure to dioxins and DL-PCBs and obesity (P < .05), with mediation proportions of 6.94% for general obesity and 5.21% for abdominal obesity.

IN PRACTICE:

“Our findings suggested that dioxins and DL-PCBs may be independent risk factors for obesity,” the authors wrote. “The hazards of dioxins on obesity should be emphasized, and additional studies are desirable to elucidate the potential mechanisms for dioxins on obesity in adults.”

SOURCE:

This study, led by Zhao-Xing Gao, Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University and Center for Big Data and Population Health of IHM, both in Hefei, China, was published online in The Journal of Clinical Endocrinology & Metabolism.

LIMITATIONS:

The cross-sectional nature of this study prevented the establishment of causal relationships between dioxins or DL-PCBs and obesity. This study relied on a small sample. Replacing chemical concentrations below the limit of detection with fixed values may have introduced bias.

DISCLOSURES:

This study was funded by grants from the National Natural Science Foundation of China, Research Fund of Anhui Institute of Translational Medicine, and Research Fund of Center for Big Data and Population Health of IHM. The authors declared no conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.