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AJPH First Look, published online ahead of print Dec 17, 2009
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AJPH.2008.154153v1
100/2/327    most recent
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February 2010, Vol 100, No. 2 | American Journal of Public Health 327-333
© 2010 American Public Health Association
DOI: 10.2105/AJPH.2008.154153

RESEARCH AND PRACTICE

A Worksite Obesity Intervention: Results From a Group-Randomized Trial

Judith M. Siegel, PhD, MSHyg, Michael L. Prelip, MPH, DPA, Jennifer Toller Erausquin, MPH, PhD and Sonia A. Kim, PhD

At the time of the study, Judith M. Siegel, Michael L. Prelip, Jennifer Toller Erausquin, and Sonia A. Kim were with the Department of Community Health Sciences, School of Public Health, University of California, Los Angeles.

Correspondence: Correspondence can be sent to Judith M. Siegel, PhD, UCLA-School of Public Health, Box 95-1772, Los Angeles, CA 90095-1772 (e-mail: jmsiegel{at}ucla.edu). Reprints can be ordered at http://www.ajph.org by clicking the "Reprints/Eprints" link.

Objectives. We used a participatory process to develop an obesity intervention appropriate for elementary school personnel.

Methods. A randomized controlled trial included 16 school worksites (8 intervention, 8 control). Intervention schools formed committees to develop and implement health promotion activities for employees. Anthropometric and self-report data were collected at baseline and postintervention (2 years later). The primary outcome measures were body mass index (BMI), waist–hip ratio, physical activity, and fruit and vegetable consumption.

Results. After adjustment for age, ethnicity, and job classification, employees in intervention schools reduced their BMI by an average of 0.04 kg/m2, and those in control schools increased their BMI by an average of 0.37 kg/m2. Comparisons for waist–hip ratio, weekly physical activity minutes, and fruit and vegetable consumption were not significant.

Conclusions. The participatory process appeared to be an effective means for stimulating change. The intervention may have slowed and perhaps reversed the tendency of adults to gain weight progressively with age.






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