Document Detail

Comparison of diet measures from a food-frequency questionnaire with measures from repeated 24-hour dietary recalls. The Norwegian Women and Cancer Study.
MedLine Citation:
PMID:  17381903     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To compare diet measures from a food-frequency questionnaire (FFQ) with measures from 24-hour dietary recalls (24HDRs). DESIGN: The participants answered an FFQ after completing four, repeated 24HDRs during a year. SETTING: Norway, nationwide. SUBJECTS: Of 500 women randomly selected from The Norwegian Women and Cancer Study (the Norwegian arm of the European Prospective Investigation into Cancer and Nutrition), 286 agreed to participate and 238 completed the study. RESULTS: On the group level, the FFQ overestimated absolute intake in seven and underestimated intake in six of 21 food groups. Intakes of energy, fat, added sugar and alcohol were lower in the FFQ than in the 24HDRs, whereas intake of fibre was higher. Spearman's rank correlation coefficient ranged from 0.13 (desserts) to 0.82 (coffee) for foods, and from 0.25 (beta-carotene) to 0.67 (alcohol) for nutrients. Three per cent of the observations on nutrient intake fell in the opposite quintile when classified according to the FFQ as compared with the 24HDR. The median calibration coefficient, calculated by regression of the 24HDR data on the FFQ data, was 0.57 for foods and 0.38 for nutrients. CONCLUSIONS: The FFQ's ability to rank subjects was good for foods eaten frequently and fairly good for macronutrients in terms of energy percentages. Weaker ranking abilities were seen for foods eaten infrequently and for some micronutrients. The results underline the necessity of performing measurement error corrections.
Anette Hjartåker; Lene Frost Andersen; Eiliv Lund
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Publication Detail:
Type:  Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2007-03-15
Journal Detail:
Title:  Public health nutrition     Volume:  10     ISSN:  1368-9800     ISO Abbreviation:  Public Health Nutr     Publication Date:  2007 Oct 
Date Detail:
Created Date:  2007-09-05     Completed Date:  2008-01-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9808463     Medline TA:  Public Health Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  1094-103     Citation Subset:  IM    
Department of Biostatistics, Institute for Basic Medical Sciences, University of Oslo, Oslo, Norway.
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MeSH Terms
Diet Records
Interviews as Topic
Mental Recall
Middle Aged

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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