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Randomized Controlled Trial
. 2010 Mar;52(3):291-302.
doi: 10.1097/JOM.0b013e3181d46f0b.

Second-year results of an obesity prevention program at the Dow Chemical Company

Ron Z Goetzel  1 , Enid C Roemer, Xiaofei Pei, Meghan E Short, Maryam J Tabrizi, Mark G Wilson, David M Dejoy, Beth A Craun, Karen J Tully, John M White, Catherine M Baase
Affiliations
Randomized Controlled Trial

Second-year results of an obesity prevention program at the Dow Chemical Company

Ron Z Goetzel et al. J Occup Environ Med. 2010 Mar.

Abstract

Objective: Evaluate innovative, evidence-based approaches to organizational/supportive environmental interventions aimed at reducing the prevalence of obesity among Dow employees after 2 years of implementation.

Methods: A quasi-experimental study design compared outcomes for two levels of intervention intensity with a control group. Propensity scores were used to weight baseline differences between intervention and control subjects. Difference-in-differences methods and multilevel modeling were used to control for individual and site-level confounders.

Results: Intervention participants maintained their weight and body mass index, whereas control participants gained 1.3 pounds and increased their body mass index values by 0.2 over 2 years. Significant differences in blood pressure and cholesterol values were observed when comparing intervention employees with controls. At higher intensity sites, improvements were more pronounced.

Conclusions: Environmental interventions at the workplace can support weight management and risk reduction after 2 years.

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Figure 1
Participation rates for HRA cohort and biometric screening cohort participants.
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