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Four in 10 women in the United States are obese, 1 in 10 women has a body mass index above 40 kg/m2, and significantly more women are obese than a decade ago, according to a large study published June 7 in JAMA.
In contrast, obesity rates among men in the United States have remained stable since 2005, said Dr. Katherine Flegal of the National Center for Health Statistics. “Other studies are needed to determine the reasons for these trends,” she and her associates wrote.
Between 1980 and 2000, obesity rates in the United States rose significantly among both men and women. Between 2000 and 2004, rates rose significantly for men, but not women. Rates then leveled off for both sexes through 2012. To further explore these trends, Dr. Flegal and her associates calculated the prevalence of obesity (BMI greater than 30 kg/m2) and class 3 obesity (BMI greater than 40 kg/m2) for 2,638 men and 2,817 women aged 20 and up during 2013-2014, the most recently available 2-year data period from the National Health and Nutrition Examination Survey (NHANES). The researchers also examined trends in obesity since 2005, based on NHANES data from 21,013 adults (JAMA. 2016 Jun 7. doi: 10.1001/jama.2016.6458).
About 38% of adults in the United States were obese during 2013-2014 (95% confidence interval, 36%-40%), including about 40% of women and 35% of men, the researchers found. A total of 7.7% of adults had a BMI of at least 40, including 5.5 % of men and 9.9% of women.
During the decade from 2005 through 2014, the prevalence of obesity among women rose significantly from 35.6% to 41.1% (P = .004), even after the investigators adjusted for age, race and Hispanic origin, smoking status, and education. Among men, the adjusted prevalence of obesity remained about 35% during this time period. Likewise, the adjusted prevalence of class 3 obesity (BMI of at least 40) rose significantly for women (P = .01), but not for men.
Black women also were significantly more likely to be obese or severely obese, compared with non-Hispanic white women in the study, the investigators found. Among men, current smokers were less likely to be obese than never smokers, and women with education beyond high school were less likely to be obese than women who had not finished high school.
The investigators reported no funding sources and had no disclosures.
Much research and attention have been directed toward the treatment of obesity, but the development of new drugs and procedures will not solve the problem. Perhaps genetics will unlock some of the mysteries of obesity, but this will take time, and more immediate solutions are needed. The emphasis has to be on prevention, despite evidence that school- and community-based prevention programs and education campaigns by local governments and professional societies have not been highly successful.
The obesity epidemic in the United States is now 3 decades old, and huge investments have been made in research, clinical care, and development of various programs to counteract obesity. However, few data suggest the epidemic is diminishing. Perhaps it is time for an entirely different approach, one that emphasizes collaboration with the food and restaurant industries that are in part responsible for putting food on our dinner tables.
Dr. Jody W. Zylke is deputy editor of JAMA. Dr. Howard Bauchner is editor in chief of JAMA. These comments are from their accompanying editorial (JAMA. 2016 Jun 7. doi: 10.1001/jama.2016.6190).
Much research and attention have been directed toward the treatment of obesity, but the development of new drugs and procedures will not solve the problem. Perhaps genetics will unlock some of the mysteries of obesity, but this will take time, and more immediate solutions are needed. The emphasis has to be on prevention, despite evidence that school- and community-based prevention programs and education campaigns by local governments and professional societies have not been highly successful.
The obesity epidemic in the United States is now 3 decades old, and huge investments have been made in research, clinical care, and development of various programs to counteract obesity. However, few data suggest the epidemic is diminishing. Perhaps it is time for an entirely different approach, one that emphasizes collaboration with the food and restaurant industries that are in part responsible for putting food on our dinner tables.
Dr. Jody W. Zylke is deputy editor of JAMA. Dr. Howard Bauchner is editor in chief of JAMA. These comments are from their accompanying editorial (JAMA. 2016 Jun 7. doi: 10.1001/jama.2016.6190).
Much research and attention have been directed toward the treatment of obesity, but the development of new drugs and procedures will not solve the problem. Perhaps genetics will unlock some of the mysteries of obesity, but this will take time, and more immediate solutions are needed. The emphasis has to be on prevention, despite evidence that school- and community-based prevention programs and education campaigns by local governments and professional societies have not been highly successful.
The obesity epidemic in the United States is now 3 decades old, and huge investments have been made in research, clinical care, and development of various programs to counteract obesity. However, few data suggest the epidemic is diminishing. Perhaps it is time for an entirely different approach, one that emphasizes collaboration with the food and restaurant industries that are in part responsible for putting food on our dinner tables.
Dr. Jody W. Zylke is deputy editor of JAMA. Dr. Howard Bauchner is editor in chief of JAMA. These comments are from their accompanying editorial (JAMA. 2016 Jun 7. doi: 10.1001/jama.2016.6190).
Four in 10 women in the United States are obese, 1 in 10 women has a body mass index above 40 kg/m2, and significantly more women are obese than a decade ago, according to a large study published June 7 in JAMA.
In contrast, obesity rates among men in the United States have remained stable since 2005, said Dr. Katherine Flegal of the National Center for Health Statistics. “Other studies are needed to determine the reasons for these trends,” she and her associates wrote.
Between 1980 and 2000, obesity rates in the United States rose significantly among both men and women. Between 2000 and 2004, rates rose significantly for men, but not women. Rates then leveled off for both sexes through 2012. To further explore these trends, Dr. Flegal and her associates calculated the prevalence of obesity (BMI greater than 30 kg/m2) and class 3 obesity (BMI greater than 40 kg/m2) for 2,638 men and 2,817 women aged 20 and up during 2013-2014, the most recently available 2-year data period from the National Health and Nutrition Examination Survey (NHANES). The researchers also examined trends in obesity since 2005, based on NHANES data from 21,013 adults (JAMA. 2016 Jun 7. doi: 10.1001/jama.2016.6458).
About 38% of adults in the United States were obese during 2013-2014 (95% confidence interval, 36%-40%), including about 40% of women and 35% of men, the researchers found. A total of 7.7% of adults had a BMI of at least 40, including 5.5 % of men and 9.9% of women.
During the decade from 2005 through 2014, the prevalence of obesity among women rose significantly from 35.6% to 41.1% (P = .004), even after the investigators adjusted for age, race and Hispanic origin, smoking status, and education. Among men, the adjusted prevalence of obesity remained about 35% during this time period. Likewise, the adjusted prevalence of class 3 obesity (BMI of at least 40) rose significantly for women (P = .01), but not for men.
Black women also were significantly more likely to be obese or severely obese, compared with non-Hispanic white women in the study, the investigators found. Among men, current smokers were less likely to be obese than never smokers, and women with education beyond high school were less likely to be obese than women who had not finished high school.
The investigators reported no funding sources and had no disclosures.
Four in 10 women in the United States are obese, 1 in 10 women has a body mass index above 40 kg/m2, and significantly more women are obese than a decade ago, according to a large study published June 7 in JAMA.
In contrast, obesity rates among men in the United States have remained stable since 2005, said Dr. Katherine Flegal of the National Center for Health Statistics. “Other studies are needed to determine the reasons for these trends,” she and her associates wrote.
Between 1980 and 2000, obesity rates in the United States rose significantly among both men and women. Between 2000 and 2004, rates rose significantly for men, but not women. Rates then leveled off for both sexes through 2012. To further explore these trends, Dr. Flegal and her associates calculated the prevalence of obesity (BMI greater than 30 kg/m2) and class 3 obesity (BMI greater than 40 kg/m2) for 2,638 men and 2,817 women aged 20 and up during 2013-2014, the most recently available 2-year data period from the National Health and Nutrition Examination Survey (NHANES). The researchers also examined trends in obesity since 2005, based on NHANES data from 21,013 adults (JAMA. 2016 Jun 7. doi: 10.1001/jama.2016.6458).
About 38% of adults in the United States were obese during 2013-2014 (95% confidence interval, 36%-40%), including about 40% of women and 35% of men, the researchers found. A total of 7.7% of adults had a BMI of at least 40, including 5.5 % of men and 9.9% of women.
During the decade from 2005 through 2014, the prevalence of obesity among women rose significantly from 35.6% to 41.1% (P = .004), even after the investigators adjusted for age, race and Hispanic origin, smoking status, and education. Among men, the adjusted prevalence of obesity remained about 35% during this time period. Likewise, the adjusted prevalence of class 3 obesity (BMI of at least 40) rose significantly for women (P = .01), but not for men.
Black women also were significantly more likely to be obese or severely obese, compared with non-Hispanic white women in the study, the investigators found. Among men, current smokers were less likely to be obese than never smokers, and women with education beyond high school were less likely to be obese than women who had not finished high school.
The investigators reported no funding sources and had no disclosures.
FROM JAMA
Key clinical point: Significantly more women in the United States are obese now than a decade ago, while obesity rates among men have leveled off.
Major finding: During 2005 through 2014, the adjusted prevalence of obesity among women rose from 35.6% to 41.1% (P = .004).
Data source: An analysis of the body mass index for 26,468 adults from the National Health and Nutrition Examination Survey.
Disclosures: The researchers reported no funding sources and had no disclosures.
