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Eur J Clin Nutr. 2014 Mar;68(3):324-9. doi: 10.1038/ejcn.2013.274. Epub 2014 Jan 8.

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

Author information

1
1] Nutritional Epidemiology, Department of Nutrition and Food Sciences, University Bonn, Bonn, Germany [2] Section of Epidemiology, Institute of Experimental Medicine, University Kiel, Kiel, Germany.
2
Department of Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany.
3
Institute of Epidemiology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany.
4
Institute of Epidemiology and Preventive Medicine, University Medical Center Regensburg, Regensburg, Germany.
5
1] Institute of Epidemiology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany [2] Institute for Prevention and Cancer Epidemiology, University Medical Center Freiburg, Freiburg, Germany.
6
1] Institute for Prevention and Cancer Epidemiology, University Medical Center Freiburg, Freiburg, Germany [2] Obstetrics and Gynecology Epidemiology Center, Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
7
Molecular Epidemiology Group, Max Delbrueck Center for Molecular Medicine (MDC) Berlin-Buch, Berlin, Germany.
8
Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Karlsruhe, Germany.
9
Section of Epidemiology, Institute of Experimental Medicine, University Kiel, Kiel, Germany.

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.

PMID:
24398637
DOI:
10.1038/ejcn.2013.274
[Indexed for MEDLINE]

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