Document Detail


Relative validity and reproducibility of a diet history questionnaire in Spain. I. Foods. EPIC Group of Spain. European Prospective Investigation into Cancer and Nutrition.
MedLine Citation:
PMID:  9126537     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: A pilot study was carried out to evaluate the relative validity and reproducibility of a dietary history questionnaire (DH) designed to be used in Spain as part of a prospective European research project on diet and cancer. METHODS: A total of 91 volunteers (46 men and 45 women) aged 35-60 years, and of various occupational categories, participated in the study. The DH was structured according to occasions of intake and was administered twice by interview, with a year's interval. Twelve 24-hour diet recalls, administered monthly between the two administrations of the DH, were used as a reference method. Natural units, geometric figures and a set of photographs were used to quantity portion size. RESULTS: Of a total of 17 food groups, the Pearson correlation coefficients between the daily intake of food groups, based on the mean of 12 24-hour diet recalls, and the second DH showed values between 0.65 and 0.90 in 14 groups (potatoes, vegetables, fruits, cheese, other dairy products, bread, other cereals, meat and poultry, fish and shellfish, butter, margarine and oils, sugar and sweets, other desserts, alcohol and coffee and tea) in males and in 11 groups (potatoes, other vegetables, fruits, cheese, other dairy products, bread, meat and poultry, fish and shellfish, sugar and sweets, alcohol and coffee and tea) in females. In comparison with the mean of 12 24-hour diet recalls the DH questionnaire over-estimated (in both sexes) the intake of vegetables, cereals, butter, margarine and oils and underestimated the intake of sugar and sweets, and other desserts. CONCLUSIONS: The DH method is more expensive and more difficult to apply than other instruments but it provides good information on the habitual food intake of the individual.
Authors:
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  International journal of epidemiology     Volume:  26 Suppl 1     ISSN:  0300-5771     ISO Abbreviation:  Int J Epidemiol     Publication Date:  1997  
Date Detail:
Created Date:  1997-05-20     Completed Date:  1997-05-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7802871     Medline TA:  Int J Epidemiol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  S91-9     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Diet*
Diet Surveys*
Female
Humans
Male
Mental Recall
Middle Aged
Pilot Projects
Questionnaires*
Reproducibility of Results
Spain

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


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