A new method for developing an efficient, regional semi-quantitative food frequency questionnaire.

Résumé fourni par la source

BACKGROUND AND OBJECTIVES: To establish a new method for developing an efficient and region-specific semi-quantitative food frequency questionnaire (SQFFQ), and to make it a simple, effective and widely applicable measurement tool, this study takes Xi'an City, Shaanxi Province as a case study. METHODS AND STUDY DESIGN: For 129 common food items, an initial food frequency questionnaire (FFQ) and a 24-hour dietary recall survey (24hDR) are constructed, and a variety of methods are combined to improve the convenience and credibility of the questionnaire itself in the inspection process, and the reliability and validity test are carried out. RESULTS: A total of 367 questionnaires are collected in study, including FFQ and 24hDR at various correction stages, in a three-month interval, and finally a semi-quantitative food frequency questionnaire containing 104 food items is obtained. The Pearson correlation coefficient of SQFFQ1 and SQFFQ2 ranges from 0.60-0.75, and the Spearman and Kendall correlation coefficients range from 0.50-0.89, and the corre-lation coefficient increases slightly after logarithmic transformation by logarithmic transformation, and the CCC correlation coefficient increases to 0.5-0.95. On average, more than 80% of subjects are classified as identical or adjacent tertiles per SQFFQ result. The Pearson, Spearman, Kendall, CCC correlation coefficients between 24hDR and SQFFQ2 range from 0.50-0.90, and on average more than 75% of participants are in the same or adjacent energy and nutrient tertiles in SQFFQ2 versus 24hDR results. CONCLUSIONS: The semi-quantitative food frequency questionnaire for dietary pattern surveys in Xi'an, Shaanxi can effectively assess nutrient intake in dietary nutrient correlation studies.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.