Article
Quasi-causal associations of physical activity and neighborhood walkability with body mass index: a twin study.
Preventive medicine - 1 Jan 2015
Duncan Glen E, Cash Stephanie Whisnant, Horn Erin E, Turkheimer Eric
Abstract excerpt
OBJECTIVE: Physical activity, neighborhood walkability, and body mass index (BMI, kg/m(2)) associations were tested using quasi-experimental twin methods. We hypothesized that physical activity and walkability were independently associated with BMI within twin pairs, controlling for genetic and environmental background shared between them. METHODS: Data were from 6376 (64% female; 58% identical) same-sex pairs,...
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