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The Diabetes Educator

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Journal of Health Psychology
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Social Support and Social-ecological Resources as Mediators of Lifestyle Intervention Effects for Type 2 Diabetes

Manuel Barrera, Jr

Arizona State University & Oregon Research Institute, USA, Manuel.Barrera{at}asu.edu

Deborah J. Toobert

Oregon Research Institute, USA

Karyn L. Angell

Oregon Research Institute, USA

Russell E. Glasgow

Kaiser Permanente Colorado, USA

David P. MacKinnon

Arizona State University, USA

A study was conducted to determine if an intervention could change social support and social-ecological resources of post-menopausal women diagnosed with type 2 diabetes, and if those changes mediated the intervention’s effects on health behaviors and outcomes. Women (N = 279) were randomly assigned to receive a comprehensive 6-month Mediterranean Lifestyle Program (MLP) or usual care from their physicians (UC). MLP was successful in changing social embeddedness and social-ecological resources, but not a measure of perceived support. Changes in social-ecological resources mediated intervention effects on fat consumption, exercise and glycemic control. The experimental manipulation of mediators and the demonstrated mediation effects support the conclusion that social-ecological resources can contribute to improvements in healthful lifestyles for women with type 2 diabetes.

Key Words: intervention • mediation • social support • type 2 diabetes

Journal of Health Psychology, Vol. 11, No. 3, 483-495 (2006)
DOI: 10.1177/1359105306063321
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