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Reproducibility and validity of food group intake in a short food frequency questionnaire for the middle-aged Japanese population
PURPOSE: The purpose of this study was to evaluate the reproducibility and validity of a short food frequency questionnaire (FFQ) for food group intake in Japan, the reproducibility and partial validity of which were previously confirmed for nutrients. METHODS: A total of 288 middle-aged healthy vol...
Autores principales: | , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7923820/ https://www.ncbi.nlm.nih.gov/pubmed/33653279 http://dx.doi.org/10.1186/s12199-021-00951-3 |