| Validity of the self-administered food frequency questionnaire used in the 5-year follow-up survey of the JPHC Study Cohort I: comparison with dietary records for main nutrients. | |
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MedLine Citation:
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PMID: 12701631 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We examined the validity of energy and 16 nutrient intake measurements from a self-administered food frequency questionnaire (FFQ) used in the 5-year follow-up survey of the JPHC study using 28- or 14-day dietary records (DR) as the gold standard. The median (range) correlation coefficients between 16 nutrients measured by FFQ and DR were 0.52 (0.31-0.81) for men and 0.41 (0.22-0.56) for women. The median (range) for energy-adjusted correlation coefficients was 0.40 (0.22-0.82) for men and 0.39 (0.15-0.48) for women. With further adjustment for area, it was 0.41 and 0.35, respectively. The mean percentage of classification into the same categories between the two methods was 33% in men and 30% in women. Only 2% of subjects were classified into the extreme opposite categories. In conclusion, the results suggest that the FFQ can be used in the JPHC Study Cohort I to rank individuals according to the intakes for most of the nutrients examined. |
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Authors:
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Shoichiro Tsugane; Minatsu Kobayashi; Satoshi Sasaki; |
Publication Detail:
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Type: Journal Article; Multicenter Study; Validation Studies |
Journal Detail:
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Title: Journal of epidemiology / Japan Epidemiological Association Volume: 13 ISSN: 0917-5040 ISO Abbreviation: J Epidemiol Publication Date: 2003 Jan |
Date Detail:
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Created Date: 2003-04-18 Completed Date: 2003-05-15 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 9607688 Medline TA: J Epidemiol Country: Japan |
Other Details:
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Languages: eng Pagination: S51-6 Citation Subset: IM |
Affiliation:
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Epidemiology and Biostatistics Division, National Cancer Center Research Institute East, Kashiwa, Chiba, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Diet Records Diet Surveys* Female Food Habits* Humans Japan Male Questionnaires* Reproducibility of Results Sex Factors Statistics, Nonparametric |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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