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

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Item Type:	Article
Title:	Development and evaluation of a short 24-h food list as part of a blended dietary assessment strategy in large-scale cohort studies
Creators Name:	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. and Nöthlings, U.
Abstract:	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.
Keywords:	Nutritional Epidemiology, Dietary Assessment, Statistical Modelling
Source:	European Journal of Clinical Nutrition
ISSN:	0954-3007
Publisher:	Nature Publishing Group
Volume:	68
Number:	3
Page Range:	324-329
Date:	March 2014
Official Publication:	https://doi.org/10.1038/ejcn.2013.274
PubMed:	View item in PubMed

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