CHAPEL HILL Overall, 26 percent of U.S. men and 28 percent of U.S. women already are obese by about age 36, according to a new University of North Carolina at Chapel Hill study of adult weight gain among different ethnic groups, races and sexes.
For still-unknown reasons, black women become obese more than twice as fast as white women, and the rate for Hispanic women is about midway between the two.
U.S. men of different races and ethnic groups also put on pounds at varying rates. We found Hispanic men became obese 2.5 times faster than U.S. men of European ancestry, said Dr. Kathleen M. McTigue, a Robert Wood Johnson clinical scholar at the UNC School of Medicine.
We saw no difference in the rate of obesity development between black and non-Hispanic white men until after age 28 when black men in this country became obese 2.2 times more rapidly than white men. A report on the new study appears in the June 18 issue of Annals of Internal Medicine, a professional journal. Besides McTigue, authors are Drs. Joanne M. Garrett, associate professor of medicine; and Barry M. Popkin, professor of nutrition of the UNC School of Public Health.
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