Franckle, Rebecca L.Falbe, JenniferGortmaker, StevenBarrett, Jessica L.Giles, CatherineGanter, ClaudiaBlaine, Rachel E.Buszkiewicz, JamesTaveras, ElsieKwass, Jo-AnnLand, ThomasDavison, Kirsten2018-02-262017Franckle, R. L., J. Falbe, S. Gortmaker, J. L. Barrett, C. Giles, C. Ganter, R. E. Blaine, et al. 2017. “Student obesity prevalence and behavioral outcomes for the Massachusetts Childhood Obesity Research Demonstration project.” Obesity (Silver Spring, Md.) 25 (7): 1175-1182. doi:10.1002/oby.21867. http://dx.doi.org/10.1002/oby.21867.http://nrs.harvard.edu/urn-3:HUL.InstRepos:34868974Objective: 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 7th grade students’ self-reported health behaviors were measured in intervention communities at baseline and post-intervention. Results: Among 7th 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 7th 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 7th graders in one community compared to controls, along with improvements in behavioral targets.en-USChildhood obesityinterventionpublic healthJournal Article2018-02-2610.1002/oby.21867