Obesity rate declines slightly, study finds

CHICAGO Sat Oct 8, 2011 4:01pm EDT

Subway commuters walk through the turnstiles while leaving the U.S. Open in New York September 4, 2007.  REUTERS/Lucas Jackson/Files

Subway commuters walk through the turnstiles while leaving the U.S. Open in New York September 4, 2007.

Credit: Reuters/Lucas Jackson/Files

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CHICAGO (Reuters) - The percentage of Americans of "normal weight" has slightly increased in the past year, but overweight and obese people still command a solid majority, according to a new study.

In the third quarter of 2011, 36.6 percent of Americans were of normal weight, compared with 35.6 percent a year ago, the Gallup-Healthways Well-Being Index survey found.

Obese and overweight Americans combined for more than 60 percent of the population, it said.

"Although the majority of Americans are still overweight or obese, it is an encouraging sign that obesity rates are trending downward in the U.S.," the study said.

The survey found 35.8 percent of Americans to be overweight, compared with 36.0 percent a year ago, and 25.8 percent obese, down from 26.6 percent last year.

The study said it was not clear what caused the change, but said it could be due to the tough economy, with cash-strapped Americans choosing to eat in rather than eating at high-calorie restaurants.

A downward trend in obesity rates could also mean a drop in healthcare costs, the study said. The Centers for Disease Control and Prevention estimated medical costs associated with obesity were $147 billion in 2008.

The study used self-reported data of height and weight to determine a score of body mass index. It was based on telephone interviews with a random sample of 90,070 people aged 18 and older from July to September, and had a margin of error of plus or minus one percent.

(Editing by Greg McCune and Mohammad Zargham)

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Comments (2)
TimBickerton wrote:
“The study used self-reported data of height and weight to determine a score of body mass index. It was based on telephone interviews”

This methodology is troubling. Are Americans less obese? Or are they over-estimating their height and under-estimating their weight?

Oct 08, 2011 5:13pm EDT  --  Report as abuse
kscottg wrote:
The article states “margin of error of plus or minus one percent” So a 1% increase in the % of Americans who were of normal weight is not news wothy as it falls within the margin of error.

Oct 11, 2011 11:06am EDT  --  Report as abuse
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