Fig. 1From: Estimation of daily sodium and potassium excretion from overnight urine of Japanese children and adolescentsBland-Altman plots of daily excretion of sodium (Na24) and potassium (K24) in the verification group. Horizontal axes indicate the mean of estimates (Est) and measurements, and vertical axes indicate the differences (estimates−measurements). Dashed lines indicate mean biases (mean ± 1.96 standard deviation): −309 (−2275, 1658) for EstNa24 (a); −152 (−1165, 861) for EstK24 (b). n = 36Back to article page