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Sunday, March 21, 2010

The Effectiveness Of Policies In The Battle Against Childhood Obesity Should Be Reviewed Before Implementation

What a concept!
Before developing specific anti-obesity strategies, lawmakers and advocates should review the evidence on program effectiveness and costs in order to avoid policies that either won't work or will waste money, says Cornell economist John Cawley, in "The Economics of Childhood Obesity," published in the peer-reviewed journal Health Affairs, March 2, 2010.

Cawley, associate professor of policy analysis and management, argues that government spending should focus on programs that offer "the biggest bang for the buck." In his paper, Cawley examines recent studies of several youth-focused initiatives to reduce obesity, finding that the Coordinated Approach to Child Health (CATCH), a multistate program that teaches elementary school kids how to eat well and exercise regularly, is the most cost-effective. It costs $900 per "quality-adjusted life-year," a standard measure of the benefits of public health interventions. By comparison, a study of "walking school buses," a popular approach that encourages children and adults to walk to school together, found the program to be ineffective.

"There is widespread recognition that childhood obesity is a problem in need of attention and resources," said Cawley, who has served on the Institute of Medicine's Committee to Prevent Childhood Obesity. "But it's a bit of a wild west, anything-goes environment when it comes to creating anti-obesity programs and policies. With limited resources to spend, it would be counter-productive to rush into programs that are not cost-effective and won't provide the greatest return on investment."

The "walking school bus" sounds like a neat idea, but it doesn't increase kids' physical activity or prevent obesity. "Every county, employer, school, day care and community agency is trying to do something about obesity right now, which is great, but we also need to evaluate these programs so we can learn what works," he said.
Now why didn't anybody think of this before?

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