Comparison of 4 questionnaires for assessment of fruit and vegetable intake. A E Field , G A Colditz , M K Fox , T Byers , M Serdula , R J Bosch and K E Peterson Department of Medicine, Brigham and Women's Hospital, Boston, Mass., USA. OBJECTIVE: This study compared fruit and vegetable assessments derived from 4 self-administered questionnaires. METHODS: Among 102 adolescents, servings of fruits and vegetables assessed by 4 questionnaires were compared with estimates from 24-hour recalls. RESULTS: The prevalence of consuming 5 or more servings of fruits and vegetables a day was underestimated by the questionnaires. Questionnaires asking subjects to recall their diet over the previous year were more effective in ranking subjects (r's > or = .42) than those assessing previous-day diet (r's > or = .30). CONCLUSIONS: Brief assessments of fruit and vegetable intake are more useful for ranking subjects than for estimating prevalence of consumption of 5 or more servings per day.
American Journal of Public Health – American Public Health Association
Published: Aug 1, 1998
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