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Development and Validation of the Brief Folate-Specific Food Frequency Questionnaire for Young Women’s Diet Assessment

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  • Dominika Głąbska

    (Department of Dietetics, Faculty of Human Nutrition and Consumer Sciences, Warsaw University of Life Sciences (WULS-SGGW), 159c Nowoursynowska Street, 02-776 Warsaw, Poland)

  • Aneta Książek

    (Department of Dietetics, Faculty of Human Nutrition and Consumer Sciences, Warsaw University of Life Sciences (WULS-SGGW), 159c Nowoursynowska Street, 02-776 Warsaw, Poland)

  • Dominika Guzek

    (Department of Organization and Consumption Economics, Faculty of Human Nutrition and Consumer Sciences, Warsaw University of Life Sciences (WULS-SGGW), 159c Nowoursynowska Street, 02-776 Warsaw, Poland)

Abstract

The tools enabling brief assessment of folate intake may be of great value for public health purposes. The aim of the presented study was to design a brief folate-specific food frequency questionnaire for Central and Eastern European population of women, as well as to assess the validity and reproducibility of the designed Folate-Intake Calculation-Food Frequency Questionnaire (Fol-IC-FFQ) on a group of Polish women aged 20–30 years. Participants collected 3-day dietary records and completed the Fol-IC-FFQ twice (FFQ1: directly after the dietary record; and FFQ2: six weeks later). The analysis included an assessment of validity (comparison of the results of FFQ1 and 3-day dietary record) and of reproducibility (comparison of the results of FFQ1 and FFQ2). In assessment of validity, a Bland-Altman index of 5.3% was observed. In assessment of reproducibility, a Bland-Altman index of 2.7% was observed, the share of individuals classified into the same intake adequacy category was over 85%, the share of individuals classified into the same tertile was almost 75%, the weighted κ statistic indicated substantial agreement (0.67) and correlation was significant ( p = 0.0000; R = 0.7995). Assessment of the Fol-IC-FFQ revealed a satisfactory level of validity and very good level of reproducibility in the population of young Polish women. The Fol-IC-FFQ may be considered a valid tool for the assessment of folate intake in young Polish women and a promising tool for the assessment of folate intake in young women in Central and Eastern Europe.

Suggested Citation

  • Dominika Głąbska & Aneta Książek & Dominika Guzek, 2017. "Development and Validation of the Brief Folate-Specific Food Frequency Questionnaire for Young Women’s Diet Assessment," IJERPH, MDPI, vol. 14(12), pages 1-16, December.
    • Handle: RePEc:gam:jijerp:v:14:y:2017:i:12:p:1574-:d:122894
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    References listed on IDEAS

    as
    1. Dominika Głąbska & Ewa Malowaniec & Dominika Guzek, 2017. "Validity and Reproducibility of the Iodine Dietary Intake Questionnaire Assessment Conducted for Young Polish Women," IJERPH, MDPI, vol. 14(7), pages 1-17, June.
    2. Inge Huybrechts & Guy De Backer & Dirk De Bacquer & Lea Maes & Stefaan De Henauw, 2009. "Relative Validity and Reproducibility of a Food-Frequency Questionnaire for Estimating Food Intakes among Flemish Preschoolers," IJERPH, MDPI, vol. 6(1), pages 1-18, January.
    3. Apolline Imbard & Jean-François Benoist & Henk J. Blom, 2013. "Neural Tube Defects, Folic Acid and Methylation," IJERPH, MDPI, vol. 10(9), pages 1-38, September.
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