Effects of Proximity to Supermarkets on a Randomized Trial Studying Interventions for Obesity.

• Autores: Lauren Fiechtner, Ken Kleinman, Steven J. Melly, Mona Sharifi, Richard Marshall, Jason P. Block, Erika R. Cheng, Elsie M. Taveras
• Localización: American journal of public health, ISSN 0090-0036, Vol. 106, Nº. 3, 2016, págs. 557-562
• Idioma: inglés
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• Resumen

  • Objectives. 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 95 th 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. [ABSTRACT FROM AUTHOR]