Document Detail

Validity and reproducibility of the NORBAGREEN food frequency questionnaire.
MedLine Citation:
PMID:  17805226     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To measure the validity and reproducibility of the NORBAGREEN food frequency questionnaire (FFQ). SUBJECTS/METHODS: In Finland, 125 subjects aged 25-64 years sampled from the five main regions of the FINDIET 2002 Study and in Lithuania, 99 citizens of Kaunas aged 19-75 years participated in the study. Reference methods for the FFQ were two 3-day FFQs in Finland and four 24-h recalls in Lithuania. The FFQ was repeated after 6-8 months in both countries. The outcome of the FFQ1 was correlated with the outcome of the reference methods and with the outcome of repeated FFQ2. Cross-classification of food intakes by FFQ1 and the reference methods was examined in tertiles. RESULTS: Validity correlations (FFQ vs the reference method, Spearman's correlation) were for vegetables, fruit and bread 0.50 (P<0.01), 0.53 (P<0.01) and 0.54 (P<0.01) in Finland; and 0.55 (P<0.01), 0.31 (P<0.01) and 0.51 (P<0.01) in Lithuania, respectively. Correlations were smaller for potatoes and fish. The overall proportion categorized in the same or adjacent intake tertiles with the two instruments was over 83% in both countries. Reproducibility correlations varied between 0.51 and 0.75 in the Finnish study, and between 0.51 and 0.83 in the Lithuanian study. CONCLUSIONS: The NORBAGREEN FFQ can be used to rank subjects according to vegetable, fruit and bread consumption. Questions on fish and potato consumption need to be developed further.
J Petkeviciene; M Similä; W Becker; V Kriaucioniene; L M Valsta
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Validation Studies     Date:  2007-09-05
Journal Detail:
Title:  European journal of clinical nutrition     Volume:  63     ISSN:  1476-5640     ISO Abbreviation:  Eur J Clin Nutr     Publication Date:  2009 Jan 
Date Detail:
Created Date:  2009-01-07     Completed Date:  2009-02-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8804070     Medline TA:  Eur J Clin Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  141-9     Citation Subset:  IM    
Institute for Biomedical Research, Kaunas University of Medicine, Lithuania.
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MeSH Terms
Diet Surveys*
Food Preferences
Middle Aged
Questionnaires / standards*
Reproducibility of Results
Young Adult

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