Structured Abstract
Objectives. Childhood obesity is a serious health problem in the United States and worldwide.
More than 30 percent of American children and adolescents are overweight or obese. We
assessed the effectiveness of childhood obesity prevention programs by reviewing all
interventional studies that aimed to improve diet, physical activity, or both and that were
conducted in schools, homes, primary care clinics, childcare settings, the community, or
combinations of these settings in high-income countries. We also reviewed consumer health
informatics interventions. We compared the effects of the interventions on weight-related
outcomes (e.g., body mass index [BMI], waist circumference, percent body fat, skinfold
thickness, prevalence of obesity and overweight); intermediate outcomes (e.g., diet, physical
activity); and obesity-related clinical outcomes (e.g., blood pressure, blood lipids).