Americans might not be getting thinner just yet, but the rate of obesity among adults and children appears to have stabilized, according to results of new studies. Researchers with the Centers for Disease Control and Prevention published the results of their research in the Journal of the American Medical Association this month.
The researchers note that based on national survey data, the population prevalence of obesity, defined as a body mass index of 30 or greater, showed little change from 1960 through 1980. But around 1980, obesity rates began to climb with an increase of almost 8 percentage points in the rates documented in a survey covering 1988 through 1994 compared with results from 1976 through 1980. A survey covering 1999 through 2000 found a similar increase compared with the results from 1988 through 1994. Over the period 1999-2008, the researchers note, there were smaller changes in the prevalence among men than seen previously and no significant change in prevalence among women