Document Detail

Dietary assessment in epidemiology: comparison on food frequency and a diet history questionnaire with a 7-day food record.
MedLine Citation:
PMID:  8610709     Owner:  NLM     Status:  MEDLINE    
The validity of two types of diet assessment methods, a self-administered food frequency questionnaire and and interviewer-administered detailed diet history, was assessed relative to a 7-day food record on a population- based sample of 95 men and 108 women in Toronto, Canada, between May 1989 and July 1990. Each study subject completed both questionnaire methods, a food frequency questionnaire and an interviewer-administered diet history, as well as a 7-day food record in a crossover design. Data were analyzed for both unadjusted and energy-adjusted nutrients to estimate Pearson's and intraclass correlations and agreement within the categories. Mean values for the intake of most nutrients assessed by the two questionnaire methods were similar. Average, energy-adjusted Pearson's correlation coefficients for men between a food frequency questionnaire and a 7-day food record were 0.55 for macronutrients and 0.48 for micronutrients compared with 0.47 for macro- and 0.48 for micronutrients between an interviewer-administered diet history and a 7-day food record. For women, they were 0.48 for macro- and 0.54 for micronutrients between a food frequency questionnaire and a 7-day food record and 0.46 and 0.49, respectively, between an interviewer-administered diet history and a 7-day food record. The energy-adjusted Pearson correlations were generally higher than were the energy-unadjusted Pearson correlations and the intraclass correlations. The present study suggests that a food frequency questionnaire is comparable with an interviewer-administered diet history as a predictor of nutrients as estimated form a 7-day food record.
M Jain; G R Howe; T Rohan
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  American journal of epidemiology     Volume:  143     ISSN:  0002-9262     ISO Abbreviation:  Am. J. Epidemiol.     Publication Date:  1996 May 
Date Detail:
Created Date:  1996-05-24     Completed Date:  1996-05-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7910653     Medline TA:  Am J Epidemiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  953-60     Citation Subset:  IM    
Department of Preventive Medicine and Biostatistics, University of Toronto, ON, Canada.
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MeSH Terms
Cost-Benefit Analysis
Cross-Over Studies
Diet Records*
Diet Surveys*
Energy Metabolism
Middle Aged
Predictive Value of Tests
Questionnaires / economics,  standards*
Reproducibility of Results
Time Factors

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

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