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Childhood Obesity Rates Stop Rising

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A new study on childhood obesity over the past eight years shows positive signs.Video courtesy of the Journal of the American Medical Association

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Young Lives at Risk Jahcbie
In this five-part series, the epidemic of childhood obesity is explored from the perpective of children, parents and all others effected by this growing problem.
By Rob Stein
Washington Post Staff Writer
Wednesday, May 28, 2008

The obesity epidemic may have peaked among U.S. children, halting a decades-long trend of inexorably expanding waistlines among the nation's youngest and most vulnerable, federal health officials reported yesterday.

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A new analysis of the most recent data collected by an ongoing government survey, considered the most authoritative on the subject, detected the first sign since the 1980s that the proportion of 2-to-19-year-olds who are overweight may have stopped rising, the National Center for Health Statistics reported.

"It looks like it's leveling off," said Cynthia L. Ogden, an epidemiologist whose analysis is being published in today's issue of the Journal of the American Medical Association. "It could finally be stabilizing."

More data will be needed, however, to confirm that the data represent a turnaround in the long upward trend and not just a temporary pause, Odgen noted. And even if the epidemic has peaked, the pace at which young people are becoming overweight remains alarmingly high. Moreover, those who are already overweight face a future fraught with possible serious health problems.

"It's too soon to uncork the champagne," said David S. Ludwig, an expert on childhood obesity at Children's Hospital Boston who co-wrote an editorial accompanying the new research. "We're not out of the woods by any stretch. Even if the rates don't go up any more, they are so high that the full impact of the childhood obesity epidemic will continue for the next few decades."

Still, several experts said the data offer the first glimmer of hope that the country could be starting to push back against a major public health threat.

"We may be turning a corner with respect to obesity," said William H. Dietz, director of the Division of Nutrition, Physical Activity and Obesity at the federal Centers for Disease Control and Prevention in Atlanta. Dietz noted that the data are consistent with earlier numbers about adults nationwide and with data on children from a handful of states. "I'm hopeful we're at a turning point," he said.

The analysis could not determine why the rate may have stalled, but experts said it could be because of a variety of factors, including rising awareness of the problem among parents, schools, community groups, and government and privately funded programs.

"This lets us know that the epidemic is not an unstoppable epidemic and gives us hope our collective work can reverse it," said Risa Lavizzo-Mourey, president and chief executive of the Robert Wood Johnson Foundation, a private nonprofit group that helps fund anti-obesity programs. "It tells us that when we all work together -- parents and schools, government, voluntary organizations, industry -- we can make a difference."

The proportion of children who are obese has been rising steadily since about 1980, tripling from about 5 percent to more than 15 percent. Overweight children are prone to a host of serious health problems, including asthma, diabetes and heart disease.

Ogden and her colleagues analyzed data collected by the National Health and Nutrition Examination Survey, a nationally representative database tracking obesity and other major health issues. The study focused on the most recent data -- height and weight measurements collected from about 8,165 children and adolescents as part of the 2003-2004 and 2005-2006 surveys. There was no statistically significant change, the researchers found.

Taken together, the weight of 31.9 percent of the youths held steady at or above the 85th percentile for their age, which is considered overweight; 16.3 percent were at or above the 95th percentile, the definition of obese; and 11.3 percent were at or above the 97th percentile for their age, which classifies them as very obese.


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