Abstract
Worksites provide multiple advantages to prevent and treat obesity and to test environmental interventions to tackle its multiple causal factors. We present a literature review of group-randomized and non-randomized trials that tested worksite environmental, multiple component interventions for obesity prevention and control paying particular attention to the conduct of formative research prior to intervention development. The evidence on environmental interventions on measures of obesity appears to be strong since most of the studies have a low (4/8) and unclear (2/8) risk of bias. Among the studies reviewed whose potential risk of bias was low, the magnitude of the effect was modest and sometimes in the unexpected direction. None of the four studies describing an explicit formative research stage with clear integration of findings into the intervention was able to demonstrate an effect on the main outcome of interest. We present alternative explanation for the findings and recommendations for future research.
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Isabel Diana Fernandez, Adan Becerra, and Nancy P. Chin declare that they have no conflict of interest.
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Fernandez, I.D., Becerra, A. & Chin, N.P. Worksite Environmental Interventions for Obesity Prevention and Control: Evidence from Group Randomized Trials. Curr Obes Rep 3, 223–234 (2014). https://doi.org/10.1007/s13679-014-0100-4
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DOI: https://doi.org/10.1007/s13679-014-0100-4