Comparison of 4 questionnaires for assessment of fruit and vegetable intake. |
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| Authors: | A E Field G A Colditz M K Fox T Byers M Serdula R J Bosch K E Peterson |
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| Affiliation: | Department of Medicine, Brigham and Women''s Hospital, Boston, Mass., USA. |
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| Abstract: | 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. |
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