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Journal of Occupational & Environmental Medicine:
doi: 10.1097/JOM.0b013e31820c9023
Original Articles: CME Available for this Article at

Combining Environmental and Individual Weight Management Interventions in a Work Setting: Results From the Dow Chemical Study

DeJoy, David M. PhD; Parker, Kristin M. PhD; Padilla, Heather M. MS, RD, LD; Wilson, Mark G. HSD; Roemer, Enid C. PhD; Goetzel, Ron Z. PhD

Continued Medical Education
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Objective: To evaluate the comparative effectiveness of environmental weight loss interventions alone versus in combination with an individual intervention.

Methods: A quasi-experimental design compared outcomes for two levels of environmental interventions and for participants who did or did not simultaneously self-select into an individually focused weight loss intervention (YW8). Analysis of covariance and logistic regression techniques were used to examine risk outcomes.

Results: Employees who participated in YW8 were no more successful at losing weight than those exposed to only the environmental interventions. Approximately, 13.5% of each group lost at least 5% of their body weight; overall changes in mean body weight and body mass index were negligible in both groups.

Conclusions: Simple worksite environmental modifications may help with weight maintenance, but are not likely to result in substantial weight reductions even when combined with low-intensity individual interventions.

©2011The American College of Occupational and Environmental Medicine


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