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Comment & Response
December 2015

Demographic Prevalence of Class III Obesity

Author Affiliations
  • 1School of Public Health and Preventative Medicine, Monash University, Melbourne, Australia
  • 2Baker IDI Heart and Diabetes Institute, Melbourne, Australia
JAMA Intern Med. 2015;175(12):2000-2001. doi:10.1001/jamainternmed.2015.6533

To the Editor We welcome the research letter by Yang and Colditz,1 as it provides important information on temporal trends in the prevalence of body mass index (BMI) (calculated as weight in kilograms divided by height in meters squared) subclasses by racial group from 1988 to 1994 and 2007 to 2012 in the United States. However, we feel it is important that greater discussion regarding the diverging trends in obesity subclasses by racial group is made, especially the difference in class III obesity (BMI ≥40) between non-Hispanic black women and non-Hispanic white women, over time.

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