Document Detail

Development and validation of a food frequency questionnaire.
MedLine Citation:
PMID:  15975195     Owner:  NLM     Status:  MEDLINE    
Regular diet monitoring requires a tool validated in the target population. A 73-item, semiquantitative, self-administered food frequency questionnaire (FFQ), was adapted in French and English from the Block National Cancer Institute Health Habits and History Questionnaire. The FFQ was used to capture usual long-term food consumption among adults living in Quebec. A representative sample of adults aged 18 to 82 (57% female) was recruited by random digit dialling in the Montreal region. Approximately 64% of recruits completed and returned the instrument by mail (n=248). The FFQ was validated in a subsample (n=94, 61% female) using four nonconsecutive food records (FRs). Median energy intakes (in kcal) for men and women, respectively, were FFQ (total sample) 2,112 and 1,823, FFQ (subsample) 2,137 and 1,752, and FR (subsample) 2,510 and 1,830. Spearman correlation analyses between FFQ and FR nutrients were positive (with r ranging from 0.32 for folate to 0.58 for saturated fatty acids) and statistically significant (p<0.001), with better results among women. On average, cross-classification of energy and 24 nutrients from the FFQ and means of four FRs placed 39% into identical quartiles and 78% into identical and contiguous quartiles, with only 4% frankly misclassified. These results suggest that the FFQ is a relatively valid instrument for determining usual diet in Quebec adults.
Bryna Shatenstein; Sylvie Nadon; Catherine Godin; Guylaine Ferland
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Validation Studies    
Journal Detail:
Title:  Canadian journal of dietetic practice and research : a publication of Dietitians of Canada = Revue canadienne de la pratique et de la recherche en diététique : une publication des Diététistes du Canada     Volume:  66     ISSN:  1486-3847     ISO Abbreviation:  Can J Diet Pract Res     Publication Date:  2005  
Date Detail:
Created Date:  2005-06-24     Completed Date:  2005-08-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9811151     Medline TA:  Can J Diet Pract Res     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  67-75     Citation Subset:  IM    
Centre de recherche, Institut universitaire de gériatrie de Montréal, Département de nutrition, Université de Montréal, PQ.
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MeSH Terms
Aged, 80 and over
Diet Records
Diet Surveys
Food Habits*
Middle Aged
Nutrition Assessment*
Questionnaires / standards*
Reproducibility of Results
Sensitivity and Specificity

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

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