Development and evaluation of a short 24-h food list as part of a blended dietary assessment strategy in large-scale cohort studies

作者：Freese J^*; Feller S; Harttig U; Kleiser C; Linseisen J; Fischer B; Leitzmann M F; Six Merker J; Michels K B; Nimptsch K; Steinbrecher A; Pischon T; Heuer T; Hoffmann I; Jacobs G; Boeing H; Noethlings U

来源：European Journal of Clinical Nutrition, 2014, 68(3): 324-329.

DOI：10.1038/ejcn.2013.274

• nutritional epidemiology
• dietary assessment
• statistical modelling

BACKGROUND/OBJECTIVES: The validity of dietary assessment in large-scale cohort studies has been questioned. Combining data sources for the estimation of usual intake in a blended approach may enhance the validity of dietary measurement. Our objective was to develop a web-based 24-h food list for Germany to identify foods consumed during the previous 24 h and to evaluate the performance of the new questionnaire in a feasibility study.
SUBJECTS/METHODS: Available data from the German National Nutrition Survey II were used to develop a finite list of food items. A total of 508 individuals were invited to fill in the 24-h food list via the Internet up to three times during a 3-6-month time period. In addition, participants were asked to evaluate the questionnaire using a brief online evaluation form.
RESULTS: In total, 246 food items were identified for the 24-h food list, reflecting > 75% variation in intake of 27 nutrients and four major food groups. Among the individuals invited, 64% participated in the feasibility study. Of these, 100%, 85% and 68% of participants completed the 24-h food list one, two or three times, respectively. The average time needed to complete the questionnaire was 9 min, and its acceptability by participants was rated as high.
CONCLUSIONS: The 24-h food list represents a promising new dietary assessment tool that can be used as part of a blended approach combining multiple data sources for valid estimation of usual dietary intake in large-scale cohort studies.

• 出版日期2014-3