Validity and Reproducibility of a Quantitative Food Frequency Questionnaire for a Cohort Study in Japan
نویسندگان
چکیده
منابع مشابه
[Reproducibility and validity of a food frequency questionnaire].
OBJECTIVE Methods to evaluate food consumption still need improvement. A study was conducted to verify the reproducibility and validity of a food frequency questionnaire (FFQ) among overweight adults. METHODS The study was carried out in a private university in São Paulo, Brazil. The study sample consisted of 146 individuals of both sex with body mass index =25 kg/m2 and age between 18 and 60...
متن کاملReproducibility and relative validity of a semi-quantitative food frequency questionnaire for Chinese pregnant women
BACKGROUND Food frequency questionnaire (FFQ) is a reliable tool to estimate dietary intake in large nutritional epidemiological studies, but there is lack of a current and validated FFQ for use in urban Chinese pregnant women. This study aimed to evaluate the reproducibility and validity of a semi-quantitative FFQ designed to estimate dietary intake among urban pregnant women in a cohort study...
متن کاملRelative Validity and Reproducibility of a Quantitative Food Frequency Questionnaire for Adolescents with Type 1 Diabetes: Validity of a Food Frequency Questionnaire
UNLABELLED Background. Food frequency questionnaires are used to assess dietary intake in epidemiological studies. Objective. The aim of the study was to assess the relative validity and reproducibility of a quantitative food frequency questionnaire (QFFQ) for adolescents with type 1 diabetes. METHODS Validity was evaluated by comparing the data generated by QFFQs to those of 24-hour recalls ...
متن کاملValidity and Reproducibility of a Semi-Quantitative Food Frequency Questionnaire Adapted to an Israeli Population
Assessment of individual representative dietary practices in epidemiologic research has long been a challenge. Given the differences in eating habits and availability of foods between populations, a study was set to test the reproducibility and validity of an Israeli-adapted semi-quantitative food frequency questionnaire (SFFQ) used in case-control studies of cancer etiology. Two hundred volunt...
متن کاملDevelopment, validity and reproducibility of a food frequency questionnaire in pregnancy for the Universiti Sains Malaysia birth cohort study.
INTRODUCTION This study aimed to develop and examine the validity and reproducibility of a semi-quantitative food frequency questionnaire (FFQ) among Malay pregnant women in Kelantan, Malaysia. METHODS A total of 177 Malay pregnant women participated in the validation study while 85 of them participated in the reproducibility study which was carried out in the antenatal clinic of Universiti S...
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ژورنال
عنوان ژورنال: Japanese Journal of Clinical Oncology
سال: 1999
ISSN: 0368-2811,1465-3621
DOI: 10.1093/jjco/29.1.38