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Validity of a Self-administered Food Frequency Questionnaire for Genomic and Omics Research Among Pregnant Women: The Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study
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Validity of a Self-administered Food Frequency Questionnaire for Genomic and Omics Research Among Pregnant Women: The Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study
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Validity of a Self-administered Food Frequency Questionnaire for Genomic and Omics Research Among Pregnant Women: The Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study
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Journal Article
Validity of a Self-administered Food Frequency Questionnaire for Genomic and Omics Research Among Pregnant Women: The Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study
2025
Overview
Background: The Tohoku Medical Megabank Project has initiated the Birth and Three-Generation Cohort Study (TMM BirThree Cohort Study) including genomic and omics investigations and conducted a self-administered food frequency questionnaire with the response option “constitutionally unable to eat or drink it” for individual food items (TMM-FFQ) for pregnant women. This study evaluated the validity of the TMM-FFQ among pregnant women.Methods: Participants comprised 122 pregnant women aged ≥20 years residing in Miyagi Prefecture who completed weighed food records (WFRs) for 3 days as reference intake and the TMM-FFQ during mid-pregnancy. Correlations between nutrient or food group intakes based on the WFR and the TMM-FFQ were calculated using Spearman’s rank correlation coefficients (CCs), adjusting for energy intake and correcting for random within-individual variation of WFR. Cross-classification was also conducted according to quintiles using the WFR and TMM-FFQ data.Results: The percentages of participants who chose the “constitutionally unable to eat or drink it” option were >3% for seven food and drink items. CCs were >0.30 for 31 nutrients; the median across energy and 44 nutrients was 0.41. CCs were >0.30 for 14 food groups; the median across 20 food groups was 0.35. The median percentages of cross-classification into exact plus adjacent quintiles and extreme quintiles were 63.1% and 3.3% for energy and nutrients and 61.9% and 4.1% for food groups, respectively.Conclusion: The validity of the TMM-FFQ compared with the WFR was reasonable for certain nutrients and food groups among pregnant women in the TMM BirThree Cohort Study.
Publisher
Japan Epidemiological Association
Subject
