Fig. 8From: A meta-analysis of the reproducibility of food frequency questionnaires in nutritional epidemiological studiesReproducibility of food frequency questionnaires (FFQ) stratified by administration mode. Values represent pooled intraclass correlation coefficient (ICC) and spearman correlation coefficient (SCC), with 95% confidence intervals. The results of ICCs were present in (a) and the results of SCCs were present in (b)Back to article page