Psychosocial factors and intervention-associated changes in those factors as correlates of change in fruit and vegetable consumption in the Maryland WIC 5 A Day Promotion Program

Ann Behav Med. Fall 2000;22(4):307-15. doi: 10.1007/BF02895667.


This study sought to examine: (a) the relative effects of baseline demographic and psychosocial factors and an intensive nutritional intervention on changes in fruit and vegetable consumption in low-income, ethnically diverse women served by the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) program in Maryland; (b) whether this intervention, designed to modify psychosocial factors associated with fruit and vegetable consumption, was successful in changing these factors; and (c) whether changes in these factors were associated with increased consumption. The same women from 15 WIC program sites were surveyed at baseline and postintervention 8 months later. Women randomized to the intervention group showed significantly greater mean change in self-efficacy, attitudes, social support, and knowledge of national consumption recommendations than control group women. Changes in all psychosocial factors were significantly associated with nutrition session attendance and increased consumption. In a hierarchical model, changes in these factors accounted for most of the intervention effect on increased consumption.

Publication types

  • Clinical Trial
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adolescent
  • Adult
  • Attitude to Health*
  • Child
  • Child Nutritional Physiological Phenomena*
  • Child, Preschool
  • Female
  • Fruit*
  • Health Behavior*
  • Health Education*
  • Health Planning / trends*
  • Health Promotion*
  • Humans
  • Infant
  • Maryland
  • Program Evaluation
  • Random Allocation
  • Self Efficacy*
  • Social Support
  • Surveys and Questionnaires
  • Vegetables*