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J Nutr Educ Behav. 2003 Jul-Aug;35(4):170-5.

Predicting adolescents' intake of fruits and vegetables.

Author information

  • 1Division of Epidemiology, University of Minnesota School of Public Health, Minneapolis, Minnesota, USA. lytle@epi.umn.edu

Abstract

OBJECTIVE:

To explore potential predictors of adolescents' fruit and vegetable intake by expanding on current theory and drawing from other adolescent research.

DESIGN:

This research reports on baseline and interim data from a school-based intervention study. Data were collected through surveys administered to students at the beginning and end of their 7th grade year.

SETTING:

The students attended 16 public schools in Minnesota.

PARTICIPANTS:

Data were collected on 3878 students; approximately half were female and 67% were white. All students in the 7th grade cohort were invited to participate in the surveys and over 94% completed both surveys.

VARIABLES MEASURED:

Our dependent variable, fruit and vegetable intake, was assessed by a validated fruit and vegetable food frequency scale. Predictive factors assessed included parenting style, spirituality/religiosity, depressive symptoms, and other commonly assessed predictors.

ANALYSIS:

Generalized linear mixed model regression. Omnibus test of association using P <.05 is reported.

RESULTS:

Subjective norms, barriers, knowledge, usual food choice, parenting style, spirituality/religiosity, and depressive symptoms were statistically significant predictors of intake. The model explained about 31% of the variance in fruit and vegetable consumption.

CONCLUSIONS AND IMPLICATIONS:

To better understand adolescents' fruit and vegetable intake, we must explore novel predictors. Our results need to be replicated, and more exploratory research in this field is needed.

PMID:
12859881
[PubMed - indexed for MEDLINE]
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