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Validity and reliability of a simplified food frequency questionnaire: a cross sectional study among physical health examination adults in southwest region of China
2020
Nutrition Journal
Background In China, many people are regarded suitable for participating in regular physical examination for diagnosis and prevention of diseases. Some simplified food frequency questionnaires have been designed and used; however, the accuracy of the questionnaire is absent. This study aimed to examine the reliability and validity of simplified food frequency questionnaire (SFFQ) used among adults undergoing physical examination in southwest region of China. Methods This was a cross-sectional
doi:10.1186/s12937-020-00630-z
pmid:33023588
pmcid:PMC7541293
fatcat:abeda3sorvehllpyk7zw4hqrrq