Associations of psychosocial factors with fruit and vegetable intake among African-Americans

Public Health Nutrition - Tập 10 Số 7 - Trang 701-711 - 2007
Joanne L. Watters1, Jessie A. Satia2,3,1,4, Joseph A. Galanko2
1Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
2Center for Gastrointestinal Biology and Disease, Division of Digestive Diseases and Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
3Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
4Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA

Tóm tắt

AbstractObjectiveTo examine associations of various psychosocial factors with fruit and vegetable intake in African-American adults.MethodsA cross-sectional survey of a population-based sample of 658 African-Americans, aged 18–70 years, in North Carolina. Information was collected on diet-related psychosocial (predisposing, reinforcing and enabling) factors based on the PRECEDE (Predisposing, Reinforcing, and Enabling Constructs in Educational Diagnosis and Evaluation) planning framework; demographic, lifestyle and behavioural characteristics, and fruit and vegetable intake.ResultsThe mean participant age was 43.9 years (standard deviation 11.6), 57% were female and 76% were overweight/obese. Participants expressed healthy beliefs regarding many of, but not all, the psychosocial factors. For example, although half of the respondents believed it is important to eat a diet high in fruits/vegetables, only 26% knew that ≥ 5 daily servings are recommended. The strongest associations of the psychosocial factors with fruit/vegetable intake were for predisposing factors (e.g. belief in the importance of a high fruit/vegetable diet and knowledge of fruit/vegetable recommendations) and one reinforcing factor (social support), with differences between the healthiest and least healthy responses of 0.5–1.0 servings per day. There was evidence of effect modification by gender in associations between psychosocial factors and fruit/vegetable consumption (e.g. self-efficacy was only significant in women), with higher intakes and generally healthier responses to the psychosocial variables in women than men.ConclusionsInterventions to increase fruit/vegetable intake in African-Americans may be more effective if they focus primarily on predisposing factors, such as knowledge, self-efficacy and attitudes, but not to the exclusion of reinforcing and enabling factors. The psychosocial factors that are targeted may also need to be somewhat different for African-American men and women.

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Public Health Nutrition

Tập 10 Số 7

701-711

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