Student obesity prevalence and behavioral outcomes for the Massachusetts Childhood Obesity Research Demonstration project

OBJECTIVE: Examine changes in prevalence of obesity and target health behaviors (fruit, vegetable, and beverage consumption; physical activity; screen time; sleep duration) among students from communities that participated in the Massachusetts Childhood Obesity Research Demonstration Project (MA-CORD) compared to controls. METHODS: MA-CORD was implemented in two low-income communities. School-level prevalence of obesity among students in grades 1, 4 and 7 was calculated for the intervention communities and nine matched control communities pre- and post-intervention. Fourth and 7(th) grade students’ self-reported health behaviors were measured in intervention communities at baseline and post-intervention. RESULTS: Among 7(th) graders (the student group with greatest intervention exposure), we observed a statistically significant decrease in prevalence of obesity from baseline to post-intervention in Community 2 (−2.68 percent, p=0.049) and a similar but non-significant decrease in Community 1 (−2.24 percent, p=0.099). Fourth and 7(th) grade students in both communities were more likely to meet behavioral targets post-intervention for sugar-sweetened beverages (both communities: p<0.0001) and water (Community 1: p<0.01; Community 2: p=0.04), and in Community 2 for screen time (p<0.01). CONCLUSIONS: This multisector intervention was associated with a modest reduction in obesity prevalence among 7(th) graders in one community compared to controls, along with improvements in behavioral targets.