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Validity and Reproducibility of a Self-Administered Semi-Quantitative Food-Frequency Questionnaire for Estimating Usual Daily Fat, Fibre, Alcohol, Caffeine and Theobromine Intakes among Belgian Post-Menopausal Women

Author

Listed:
  • Selin Bolca

    (Laboratory of Microbial Ecology and Technology (LabMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium)

  • Inge Huybrechts

    (Department of Public Health, Ghent University, University Hospital 2BlokA, De Pintelaan 185, B-9000 Ghent, Belgium)

  • Mia Verschraegen

    (Department of Nutrition and Dietetics, Faculty of Health Care Vesalius, University College Ghent, Keramiekstraat 80, B-9000 Ghent, Belgium)

  • Stefaan De Henauw

    (Department of Public Health, Ghent University, University Hospital 2BlokA, De Pintelaan 185, B-9000 Ghent, Belgium
    Department of Nutrition and Dietetics, Faculty of Health Care Vesalius, University College Ghent, Keramiekstraat 80, B-9000 Ghent, Belgium)

  • Tom Van de Wiele

    (Laboratory of Microbial Ecology and Technology (LabMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium)

Abstract

A novel food-frequency questionnaire (FFQ) was developed and validated to assess the usual daily fat, saturated, mono-unsaturated and poly-unsaturated fatty acid, fibre, alcohol, caffeine, and theobromine intakes among Belgian post-menopausal women participating in dietary intervention trials with phyto-oestrogens. The relative validity of the FFQ was estimated by comparison with 7 day (d) estimated diet records (EDR, n 64) and its reproducibility was evaluated by repeated administrations 6 weeks apart ( n 79). Although the questionnaire underestimated significantly all intakes compared to the 7 d EDR, it had a good ranking ability ( r 0.47-0.94; weighted κ 0.25-0.66) and it could reliably distinguish extreme intakes for all the estimated nutrients, except for saturated fatty acids. Furthermore, the correlation between repeated administrations was high ( r 0.71-0.87) with a maximal misclassification of 7% (weighted κ 0.33-0.80). In conclusion, these results compare favourably with those reported by others and indicate that the FFQ is a satisfactorily reliable and valid instrument for ranking individuals within this study population.

Suggested Citation

  • Selin Bolca & Inge Huybrechts & Mia Verschraegen & Stefaan De Henauw & Tom Van de Wiele, 2009. "Validity and Reproducibility of a Self-Administered Semi-Quantitative Food-Frequency Questionnaire for Estimating Usual Daily Fat, Fibre, Alcohol, Caffeine and Theobromine Intakes among Belgian Post-M," IJERPH, MDPI, vol. 6(1), pages 1-30, January.
    • Handle: RePEc:gam:jijerp:v:6:y:2009:i:1:p:121-150:d:3800
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