The impact of the consumer and neighbourhood food environment on dietary intake and obesity-related outcomes: A systematic review of causal impact studies.

Study characteristics From the 58 studies that met inclusion criteria, 57 were published after 2010, with an increasing trend over time in the use of experimental methods. 30 (51%) papers were randomized control trials (RCTs), and 28 quasi-experimental studies (14 difference-in-differences (DID), one interrupted-time-series (ITS), 11 instrumental variables (IV)) Definitions of the quasi-experimental methods are provided i

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