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Obesity Epidemic Balloons to New Girth

New CDC Numbers Show 32% of Adults Are Obese
By
WebMD Health News
Reviewed by Louise Chang, MD

April 4, 2006 - A third of American adults are obese, and 17% of our kids are growing up to be obese, the CDC reports.

Adults are classified as obese if their BMI -- a measurement based on height and weight -- is 30 or higher. Technically, children and teens aren't labeled "obese." So the heaviest 17% of children and teens are classified as "overweight" because their BMI puts them in the 95th percentile for their age group and sex.

Whatever you call obesity, it's a new record for boys, girls, and men, report CDC epidemiologist Cynthia L. Ogden, PhD, and colleagues. Women did not get any more or less obese since the 1999-2000 survey.

"In boys, girls, and men, we saw an increase from 1999 to 2004," Ogden tells WebMD. "In women it was stable. We need to see whether this remains stable over time. But a third of women are obese, so it's not that obesity isn't a problem for women. It just isn't getting worse."

And that's just the tip of the iceberg. Seven out of 10 U.S. adults are overweight or obese. The new findings -- based on national survey data from 2003-2004 -- appear in the April 5 issue of The Journal of the American Medical Association.

'Stunning' Increase in Obesity

Since the decades of the '80s and '90s, Americans have been getting much, much too heavy. The new numbers show that the obesity epidemic is getting worse -- faster than ever.

"I have to say I am surprised we could detect this kind of increase in just a six-year period," Ogden says.

The numbers also stun Meir Stampfer, MD, DrPH, professor and chairman of the departments of epidemiology and nutrition at Harvard School of Public Health, Boston.

"It is just staggering," Stampfer tells WebMD. "This whole epidemic of obesity is sweeping across the country. One of the difficulties is it's becoming the norm to be overweight. People look down at their bellies, see other people's bellies, and see they are average. But in this country, if you are average, you are way overweight."

Kids at Risk for Overweight

The obesity epidemic is so large, it's offsetting the gains of a century of medical research.

"It is a disaster that is happening," Stampfer says. "We have made so many health advances that are being obscured and diminished by the increase in obesity and overweight. If not for that, there would be stunning achievements in good health."

As bad as the implications are for adults, they may be even worse for overweight children. The numbers, covering the years 2003-2004, are numbing:

  • Among kids 2-5 years old, 12% are at risk of being overweight (in the 85th weight percentile for their sex and age) and 14% are already overweight (in the 95th percentile).
  • Among kids 6-11 years old, 18% are at risk of being overweight and 19% are overweight.
  • Among kids 12-19 years old, 17% are at risk of being overweight and 17% are overweight.
  • All these numbers are up from the 1999-2000 time period. For example, the overall rate of overweight for kids 2-19 years old went up from 14% to 17%.

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