Change in self-efficacy partially mediates the effects of the FRESH START intervention on cancer survivors' dietary outcomes.

Journal Article (Journal Article)

OBJECTIVE: This study examined change in self-efficacy as a mediator of the effects of a mailed print intervention on the dietary and exercise practices of newly diagnosed breast and prostate cancer survivors. METHOD: A total of 543 breast and prostate cancer patients were recruited from 39 states and two provinces within North America. Participants were randomly assigned to receive a 10-month program of tailored mailed print materials that aimed to increase fruit and vegetable consumption, reduce fat intake, and/or increase exercise or a 10-month program of publically available materials on diet and exercise. Telephone surveys conducted at baseline and 1 year assessed dietary practices, physical activity, and self-efficacy for engaging in these health behaviors. RESULTS: Results indicated that changes in self-efficacy for fat restriction and eating more fruits and vegetables were significant mediators of the intervention's effects on dietary outcomes at 1-year follow-up. The intervention did not significantly affect self-efficacy for exercise; however, a significant, positive relationship was found between self-efficacy for exercise and exercise duration at follow-up. CONCLUSIONS: Findings are largely consistent with Social Cognitive Theory and support the use of strategies to increase self-efficacy in health promotion interventions for cancer survivors.

Full Text

Duke Authors

Cited Authors

  • Mosher, CE; Fuemmeler, BF; Sloane, R; Kraus, WE; Lobach, DF; Snyder, DC; Demark-Wahnefried, W

Published Date

  • October 2008

Published In

Volume / Issue

  • 17 / 10

Start / End Page

  • 1014 - 1023

PubMed ID

  • 18300337

Pubmed Central ID

  • 18300337

Electronic International Standard Serial Number (EISSN)

  • 1099-1611

Digital Object Identifier (DOI)

  • 10.1002/pon.1327


  • eng

Conference Location

  • England