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Validity and Reproducibility of the Iodine Dietary Intake Questionnaire Assessment Conducted for Young Polish Women

Author

Listed:
  • Dominika Głąbska

    (Department of Dietetics, Faculty of Human Nutrition and Consumer Sciences, Warsaw University of Life Sciences (WULS-SGGW), 02-787 Warsaw, Poland)

  • Ewa Malowaniec

    (Department of Dietetics, Faculty of Human Nutrition and Consumer Sciences, Warsaw University of Life Sciences (WULS-SGGW), 02-787 Warsaw, Poland)

  • Dominika Guzek

    (Department of Organization and Consumption Economics, Faculty of Human Nutrition and Consumer Sciences, Warsaw University of Life Sciences (WULS-SGGW), 02-787 Warsaw, Poland)

Abstract

The aim of this study was to analyse a designed brief iodine dietary intake questionnaire based on a food frequency assessment (IOdine Dietary INtake Evaluation-Food Frequency Questionnaire—IODINE-FFQ), including the assessment of validity and reproducibility in a group of 90 Polish women aged 20–35 years. Participants collected 3-day dietary records and filled in the IODINE-FFQ twice (FFQ1—directly after the dietary record and FFQ2—6 weeks later). The analysis included an assessment of validity (comparison with the results of the 3-day dietary record) and of reproducibility (comparison of the results obtained twice—FFQ1 and FFQ2). In the analysis of validity, a Bland-Altman index of 5.5% and 4.4% was recorded, respectively for FFQ1 and FFQ2. In the analysis of reproducibility it was 6.7%, but the share of individuals correctly classified into tertiles was over 70% (weighted κ of 0.675). It was stated, that assessment of IODINE-FFQ revealed a satisfactory level of validity and reproducibility in the analysis of Bland-Alman plot. The IODINE-FFQ may be indicated as a tool for the assessment of iodine intake in the young women in Poland, however further studies should be considered in order to obtain the practical tool for public health specialists. Due to the lack of validated iodine-specific food frequency questionnaires for countries of Eastern Europe, the IODINE-FFQ may be adjusted for courtiers other than Poland including iodine-fortified products.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jijerp:v:14:y:2017:i:7:p:700-:d:103078
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    Citations

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    Cited by:

    1. 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.
    2. Julia Rudzińska & Dominika Głąbska, 2022. "Influence of Selected Food Product Groups Consumption Frequency on Acne-Related Quality of Life in a National Sample of Polish Female Adolescents," IJERPH, MDPI, vol. 19(18), pages 1-13, September.
    3. Dominika Skolmowska & Dominika Głąbska, 2022. "Effectiveness of Dietary Intervention with Iron and Vitamin C Administered Separately in Improving Iron Status in Young Women," IJERPH, MDPI, vol. 19(19), pages 1-19, September.

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