Back to Annual Meeting Page		American Public Health Association 133rd Annual Meeting & Exposition December 10-14, 2005 Philadelphia, PA

Abstract #109197

Stephanie B. Jilcott, Nutrition/ Center for Health Promotion and Disease Prevention, University of North Carolina at Chapel Hill, 1700 Airport Road CB#8140, Chapel Hill, NC 27599-8140, (919) 843-0595, jilcott@email.unc.edu, Kelly R. Evenson, PhD, Epidemiology, University of North Carolina at Chapel Hill, Bank of America Plaza, Suite 306, 137 East Franklin St., Chapel Hill, NC 27514, Shrikant I. Bangdiwala, PhD, Biostatistics/CSCC, School of Public Health, University of North Carolina at Chapel Hill, CB# 8030, Suite 203, Bank of America Plaza, 137 E. Franklin Street, Chapel Hill, NC 27514-4145, and Alice S. Ammerman, DrPH, RD, Nutrition/Center for Health Promotion and Disease Prevention, University of North Carolina at Chapel Hill, 1700 Airport Road, CB #8140, Chapel Hill, NC 27599.

Purpose: To determine whether a clinic-based, multi-component behavioral intervention, which included community resource materials (CRM), increased use of diet and physical activity (PA) resources; To examine whether this effect was mediated by knowledge of or self-efficacy for accessing resources. Methods: Underserved women (n = 236) were randomized to receive a 12-month enhanced (EI) or minimum intervention (MI). CRM were designed to increase awareness and use of local diet and PA resources. Data on EI participants' self-reported use of resources were collected using a community resource survey. Knowledge, self-efficacy (4-item scale, alpha = 0.79), and use of resources were measured using a questionnaire administered to all participants at baseline and month 12. Change in self-reported resource use was the dependent variable in linear regression models, controlling for baseline values. We used the Sobel test for mediation, using residuals from regressing baseline use on change in use as the outcome, and change in knowledge and self-efficacy as potential mediators. Results: 73.7% of the EI women recalled receiving the CRM. Resources used the most by EI women were: farmer's markets/stands (43.0%), parks/trails (14.0%), and walking programs (14.0%). The intervention had no effect on change in use of diet resources, and a borderline significant effect (p = 0.06) on change in use of PA resources. This effect was partially mediated by knowledge of PA resources (Sobel test statistic = 1.40, p = 0.16). Conclusions: Used in a multi-component intervention, CRM may increase use of PA resources, partially mediated by increased knowledge.

Learning Objectives:

• Describe methods used to examine potential mediation of intervention effects on use of community resources.
• List the diet and physical activity community resources used the most by a group of underserved, midlife women.

Presenting author's disclosure statement:

I wish to disclose that I have NO financial interests or other relationship with the manufactures of commercial products, suppliers of commercial services or commercial supporters.