Fiechtner, LaurenKleinman, KenMelly, Steven J.Sharifi, MonaMarshall, RichardBlock, JasonCheng, Erika R.Taveras, Elsie M.2017-07-172017-07-172016-03Fiechtner, L., Kleinman, K., Melly, S. J., Sharifi, M., Marshall, R., Block, J., … Taveras, E. M. (2016). Effects of Proximity to Supermarkets on a Randomized Trial Studying Interventions for Obesity. American Journal of Public Health, 106(3), 557–562. http://doi.org/10.2105/AJPH.2015.302986https://hdl.handle.net/1805/13492OBJECTIVES: To determine whether proximity to a supermarket modified the effects of an obesity intervention. METHODS: We examined 498 children aged 6 to 12 years with a body mass index (BMI) at or above the 95th percentile participating in an obesity trial in Massachusetts in 2011 to 2013. The practice-based interventions included computerized clinician decision support plus family self-guided behavior change or health coaching. Outcomes were 1-year change in BMI z-score, sugar-sweetened beverage intake, and fruit and vegetable intake. We examined distance to the closest supermarket as an effect modifier. RESULTS: Distance to supermarkets was an effect modifier of 1-year change in BMI z-score and fruit and vegetable intake but not sugar-sweetened beverage intake. With each 1-mile shorter distance to a supermarket, intervention participants increased their fruit and vegetable intake by 0.29 servings per day and decreased their BMI z-score by -0.04 units relative to controls. CONCLUSIONS: Living closer to a supermarket is associated with greater improvements in fruit and vegetable intake and weight status in an obesity intervention.en-USPublisher PolicyBody Mass IndexDecision Support TechniquesDietExerciseFood SupplyHealth BehaviorObesitySedentary LifestyleSocioeconomic FactorsArticle