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Journal of Research in Medical Sciences، جلد ۱۶، شماره ۱۰، صفحات ۰-۰
عنوان فارسی
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عنوان انگلیسی Validity and reproducibility of a food frequency questionnaire for assessment of fruit and vegetable intake in Iranian adults
چکیده انگلیسی مقاله 800x600 Normal 0 false false false EN-US X-NONE AR-SA MicrosoftInternetExplorer4 BACKGROUND: This study’s aim was to design and validate a semi-quantitative food frequency questionnaire (FFQ) for assessment of fruits and vegetables (FV) consumption in adults of Isfahan by comparing the FFQ with dietary reference method and blood plasma levels of beta-carotene, vitamin C, and retinol. METHODS: This validation study was performed on 123 healthy adults of Isfahan. FV intake was assessed using a 110-item FFQ. Data collection was performed during two different time periods to control for seasonal effects, fall/winter (cold season) and spring/summer (warm season). In each phase a FFQ and 1 day recall, and 2 days of food records as the dietary reference method were completed and plasma vitamin C, beta-carotene and retinol were measured. Data was analyzed by Pearson or Spearman and intraclass correlations . RESULTS: Serum Lipids, sex, age, body mass index (BMI) and educational level adjusted Pearson correlation coefficient of FV with plasma vitamin C, beta-carotene and retinol were 0.55, 0.47 and 0.28 in the cold season (p < 0.05) and 0.52, 0.45 and 0.35 in the warm season (p < 0.001), respectively. Energy and fat intake, sex, age, BMI and educational level adjusted Pearson correlation coefficient for FV with dietary reference method in the cold and warm seasons were 0.62 and 0.60, respectively (p < 0.001). Intraclass correlation for reproducibility of FFQ in FV was 0.65 (p< 0.001). CONCLUSIONS: The designed FFQ had a good criterion validity and reproducibility for assessment of FV intake. Thus, it can serve as a valid tool in epidemiological studies to assess fruit and vegetable intake.
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نویسندگان مقاله نوشین محمدی فرد | noushin mohammadifard
msc in nutrition, department of nutrition, isfahan cardiovascular research center, isfahan university of medical sciences, isfahan, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

نسرین امیدوار | nasrin omidvar
associate professor, department of community nutrition, school of nutrition sciences and food technology, shahid beheshti university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (Shahid beheshti university of medical sciences)

آناهیتا هوشیار راد | anahita houshiarrad
msc in nutrition, department of nutrition research, institute of nutrition sciences and food technology, shahid beheshti university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (Shahid beheshti university of medical sciences)

تیرنگ نیستانی | tirang neyestani
associate professor, laboratory of nutrition research, national research institute, school of nutritional sciences and food technology, shahid beheshti university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (Shahid beheshti university of medical sciences)

غلام علی نادری | gholam ali naderi
associate professor, department of basic sciences, isfahan cardiovascular research center, isfahan university of medical sciences, isfahan, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

بهرام سلیمانی | bahram soleymani
assistant professor, department of biostatistics and epidemiology, isfahan university of medical sciences, isfahan, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

نشانی اینترنتی http://jrms.mui.ac.ir/index.php/jrms/article/view/7001
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زبان مقاله منتشر شده en
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