VALIDITY AND REPRODUCIBILITY OF A FOOD FREQUENCY QUESTIONNAIRE FOR ASSESSMENT OF FRUIT AND VEGETABLE INTAKE IN IRANIAN ADULTS

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MOHAMMADIFARD NOUSHIN; OMIDVAR NASRIN; HOUSHIARRAD ANAHITA; NEYESTANI TIRANG; NADERI GHOLAM ALI

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Journal: JOURNAL OF RESEARCH IN MEDICAL SCIENCES (JRMS) Year:2011 | Volume:16 | Issue:10 Page(s): 1286-1297

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Title

VALIDITY AND REPRODUCIBILITY OF A FOOD FREQUENCY QUESTIONNAIRE FOR ASSESSMENT OF FRUIT AND VEGETABLE INTAKE IN IRANIAN ADULTS

Author(s)

Keywords

SEMI-QUANTITATIVE FOOD FREQUENCY QUESTIONNAIRE

CRITERION VALIDITY

REPRODUCIBILITY

SENSITIVITY

SPECIFICITY

FRUITS AND VEGETABLE

Abstract

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.

Cites

VALIDITY AND RELIABILITY OF A 40-ITEMS FOOD FREQUENCY QUESTIONNAIRE TO MEASURE THE CONSUMPTION OF GLUTEN IN PATIENTS WITH ULCERATIVE COLITIS

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APA: Copy

MOHAMMADIFARD, NOUSHIN, OMIDVAR, NASRIN, HOUSHIARRAD, ANAHITA, NEYESTANI, TIRANG, & NADERI, GHOLAM ALI. (2011). VALIDITY AND REPRODUCIBILITY OF A FOOD FREQUENCY QUESTIONNAIRE FOR ASSESSMENT OF FRUIT AND VEGETABLE INTAKE IN IRANIAN ADULTS. JOURNAL OF RESEARCH IN MEDICAL SCIENCES (JRMS), 16(10), 1286-1297. SID. https://sid.ir/paper/583236/en

Vancouver: Copy

MOHAMMADIFARD NOUSHIN, OMIDVAR NASRIN, HOUSHIARRAD ANAHITA, NEYESTANI TIRANG, NADERI GHOLAM ALI. VALIDITY AND REPRODUCIBILITY OF A FOOD FREQUENCY QUESTIONNAIRE FOR ASSESSMENT OF FRUIT AND VEGETABLE INTAKE IN IRANIAN ADULTS. JOURNAL OF RESEARCH IN MEDICAL SCIENCES (JRMS)[Internet]. 2011;16(10):1286-1297. Available from: https://sid.ir/paper/583236/en

IEEE: Copy

NOUSHIN MOHAMMADIFARD, NASRIN OMIDVAR, ANAHITA HOUSHIARRAD, TIRANG NEYESTANI, and GHOLAM ALI NADERI, “VALIDITY AND REPRODUCIBILITY OF A FOOD FREQUENCY QUESTIONNAIRE FOR ASSESSMENT OF FRUIT AND VEGETABLE INTAKE IN IRANIAN ADULTS,” JOURNAL OF RESEARCH IN MEDICAL SCIENCES (JRMS), vol. 16, no. 10, pp. 1286–1297, 2011, [Online]. Available: https://sid.ir/paper/583236/en

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