Goldsby, TaShauna U.George, Brandon J.Yeager, Valerie A.Sen, Bisakha P.Ferdinand, AlvaSims, Devon M. T.Manzella, BrynCockrell Skinner, AshleyAllison, David B.Menachemi, Nir2017-07-172017-07-172016-04-08Goldsby, T. U., George, B. J., Yeager, V. A., Sen, B. P., Ferdinand, A., Sims, D. M. T., … Menachemi, N. (2016). Urban Park Development and Pediatric Obesity Rates: A Quasi-Experiment Using Electronic Health Record Data. International Journal of Environmental Research and Public Health, 13(4), 411. http://doi.org/10.3390/ijerph13040411https://hdl.handle.net/1805/13497INTRODUCTION: Childhood obesity affects ~20% of children in the United States. Environmental influences, such as parks, are linked with increased physical activity (PA). OBJECTIVE: To examine whether changes in Body Mass Index (BMI) z-score were associated with construction of a new park. METHODS: A quasi-experimental design was used to determine whether living in proximity of a park was associated with a reduction in BMI z-score. Children were selected from health clinics within an 11 mile radius of the park. A repeated-measure ANOVA was employed for analysis of the relationship between exposure (new park) and BMI z-score. RESULTS: Participants were 1443 (median age 10.3 range (2-17.9 years), BMI: z-score 0.84 ± 1.09) African American (77.4%) adolescents. Change in BMI z-score was not statistically different for children living at different distances from the park after controlling for age, gender, race, ethnicity, or payer type (p = 0.4482). We did observe a small 0.03 increase in BMI z-score from pre- to post-park (p = 0.0007). There was a significant positive association between child's baseline age and BMI z-score (p < 0.001). CONCLUSIONS: This study found proximity to a park was not associated with reductions in BMI z-score. Additional efforts to understand the complex relationship between park proximity, access, and PA are warranted.en-USAttribution-NonCommercial-NoDerivs 3.0 United StatesChildhood obesityBuilt environmentQuasi-experimentElectronic health recordsArticle