Validity of a self-administered food frequency questionnaire (FFQ) and its generalizability to the estimation of dietary folate intake in Japan

BACKGROUND: In an epidemiological study, it is essential to test the validity of the food frequency questionnaire (FFQ) for its ability to estimate dietary intake. The objectives of our study were to 1) validate a FFQ for estimating folate intake, and to identify the foods that contribute to inter-i...

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Detalles Bibliográficos
Autores principales: Ishihara, Junko, Yamamoto, Seiichiro, Iso, Hiroyasu, Inoue, Manami, Tsugane, Shoichiro
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2005
Materias:
Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1277847/
https://www.ncbi.nlm.nih.gov/pubmed/16202175
http://dx.doi.org/10.1186/1475-2891-4-26

Internet

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1277847/
https://www.ncbi.nlm.nih.gov/pubmed/16202175
http://dx.doi.org/10.1186/1475-2891-4-26

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