What is the Validity of Questionnaires Assessing Fruit and Vegetable Consumption in Children when Compared with Blood Biomarkers? A Meta-Analysis

摘要: Fruit and vegetable consumption has been associated with improved health outcomes in children. As an extensive number of questionnaires are currently used to assess fruit consumption, we performed a systematic review the criterion validity estimate children, considering blood biomarkers as reference method. Five electronic databases (MEDLINE, CINAHL, Scopus, PsycINFO, Web Science) were searched from database inception 23 July 2018. The search strategy following sets descriptors: children; fruits vegetables; dietary questionnaires; biomarkers; validation coefficient. terms adapted for use other combination database-specific filters. Potentially eligible articles selected independently by two reviewers, separately, Preferred Reporting Items Systematic Reviews Meta-Analyses (PRISMA) guidelines. Two meeting inclusion criteria included. main reason study exclusion was sample age range, which included adolescents. pooled correlation coefficient 0.32 (95% confidence interval: 0.24⁻0.40).This provided insights into assessment methods Although further studies required, assessing have fair