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Self-efficacy as a predictor of weight change and behavior change in the PREMIER trial.

Publication ,  Journal Article
Wingo, BC; Desmond, RA; Brantley, P; Appel, L; Svetkey, L; Stevens, VJ; Ard, JD
Published in: J Nutr Educ Behav
2013

OBJECTIVES: Determine whether self-efficacy independently predicted weight loss in a behavioral intervention and explore factors that influence the path between self-efficacy and weight change. DESIGN: Secondary analysis of the PREMIER trial, a randomized controlled trial testing effects of lifestyle interventions on blood pressure. SETTING: Four academic medical centers. PARTICIPANTS: PREMIER recruited adults (n = 810) with pre-hypertension/stage 1 hypertension, not currently receiving medication. This analysis excluded participants in the control arm, resulting in n = 537. INTERVENTIONS: Participants were randomly assigned to 1 of 3 groups: advice only, established lifestyle recommendations, or established lifestyle recommendations plus Dietary Approaches to Stop Hypertension dietary pattern. MAIN OUTCOME MEASURES: Self-efficacy (dietary self-efficacy [DSE], exercise self-efficacy [ESE]), dietary intake, fitness. ANALYSIS: Pearson correlations, 1-way analysis of variance, mediation analyses. RESULTS: Despite an overall decrease in DSE/ESE, change in DSE/ESE significantly predicted weight change at 6 (β = -.21, P < .01; β = -.19, P < .01, respectively) and 18 months (β = -.19, P < .01; β = -.35, P < .01). Change in percent calories from fat partially mediated the DSE/weight change relationship at 6 months. Change in fitness partially mediated the ESE/weight change relationship at 18 months. CONCLUSIONS AND IMPLICATIONS: Changes in DSE/ESE were not associated with behavior change as hypothesized. Additional research is needed to identify mediators between self-efficacy and adoption of behaviors that influence weight loss.

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Published In

J Nutr Educ Behav

DOI

EISSN

1878-2620

Publication Date

2013

Volume

45

Issue

4

Start / End Page

314 / 321

Location

United States

Related Subject Headings

  • Weight Loss
  • Surveys and Questionnaires
  • Self Efficacy
  • Obesity
  • Nutrition & Dietetics
  • Middle Aged
  • Male
  • Life Style
  • Humans
  • Health Behavior
 

Citation

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Wingo, B. C., Desmond, R. A., Brantley, P., Appel, L., Svetkey, L., Stevens, V. J., & Ard, J. D. (2013). Self-efficacy as a predictor of weight change and behavior change in the PREMIER trial. J Nutr Educ Behav, 45(4), 314–321. https://doi.org/10.1016/j.jneb.2012.12.004
Wingo, Brooks C., Renee A. Desmond, Phillip Brantley, Lawrence Appel, Laura Svetkey, Victor J. Stevens, and Jamy D. Ard. “Self-efficacy as a predictor of weight change and behavior change in the PREMIER trial.J Nutr Educ Behav 45, no. 4 (2013): 314–21. https://doi.org/10.1016/j.jneb.2012.12.004.
Wingo BC, Desmond RA, Brantley P, Appel L, Svetkey L, Stevens VJ, et al. Self-efficacy as a predictor of weight change and behavior change in the PREMIER trial. J Nutr Educ Behav. 2013;45(4):314–21.
Wingo, Brooks C., et al. “Self-efficacy as a predictor of weight change and behavior change in the PREMIER trial.J Nutr Educ Behav, vol. 45, no. 4, 2013, pp. 314–21. Pubmed, doi:10.1016/j.jneb.2012.12.004.
Wingo BC, Desmond RA, Brantley P, Appel L, Svetkey L, Stevens VJ, Ard JD. Self-efficacy as a predictor of weight change and behavior change in the PREMIER trial. J Nutr Educ Behav. 2013;45(4):314–321.
Journal cover image

Published In

J Nutr Educ Behav

DOI

EISSN

1878-2620

Publication Date

2013

Volume

45

Issue

4

Start / End Page

314 / 321

Location

United States

Related Subject Headings

  • Weight Loss
  • Surveys and Questionnaires
  • Self Efficacy
  • Obesity
  • Nutrition & Dietetics
  • Middle Aged
  • Male
  • Life Style
  • Humans
  • Health Behavior