Figure 1From: Reproducibility and validity of the food frequency questionnaire for estimating habitual dietary intake in children and adolescents Design of the food frequency questionnaire reproducibility and validity study. The order of the CFFQ and AFFQ was random for each subject. We applied the FFQs and 4-day WDRs to 50 subjects in the YC group and 53 in the AD group. There were 89 subjects who completed all FFQs and the 4-day WDRs (YC group n = 48, AD group n = 41). CFFQ: Food frequency questionnaire for dietary assessment in children. AFFQ: Food frequency questionnaire for dietary assessment in adults. WDR: Weighed dietary record.Back to article page