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Glorian Sorensen, PhD, Elizabeth Barbeau, ScD, Anne M. Stoddard, ScD, Mary Kay Hunt, RD, MPH, Kimberly Kaphingst, ScD and Lorraine Wallace, MPH

At the time of the study, Glorian Sorensen, Elizabeth Barbeau, Mary Kay Hunt, Kimberly Kaphingst, and Lorraine Wallace were with the Center for Community-Based Research, Dana-Farber Cancer Institute, Boston, Mass. Glorian Sorensen is also with the Department of Society, Human Development and Health, Harvard School of Public Health, Boston, Mass. Anne M. Stoddard is with the New England Research Institute, Watertown, Mass.

Correspondence: Requests for reprints should be sent to Glorian Sorensen, PhD, Dana-Farber Cancer Institute, Center for Community-Based Research, 44 Binney St, Boston MA 02115 (e-mail: glorian_sorensen{at}dfci.harvard.edu).

Objectives. We examined the efficacy of a cancer prevention intervention designed to improve health behaviors among working-class, multiethnic populations employed in small manufacturing businesses.

Methods. Worksites were randomly assigned to an intervention or minimal-intervention control condition. The intervention targeted fruit and vegetable consumption, red meat consumption, multivitamin use, and physical activity.

Results. Employees in the intervention group showed greater improvements for every outcome compared with employees in the control group. Differences in improvement were statistically significant for multivitamin use and physical activity. Intervention effects were larger among workers than among managers for fruit and vegetable consumption and for physical activity.

Conclusions. The social-context model holds promise for reducing disparities in health behaviors. Further research is needed to improve the effectiveness of the intervention.

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