Fig. 3

Bland and Altman plot of the subgroups. The horizontal red dashed line represent the mean difference, the dark blue dashed lines the 95% CI of the mean difference, the blue dashed lines the lower and upper limits of agreement, and the black dotted line the regression line between the mean and difference in the means. a The X-axis shows the means of the T-scores of the two measurement time points and the Y-axis the differences in means of the T-scores between the two measurements. b Note this figure is based on the rankits of the T-score in participants with normal cognition. The X-axis shows the means of rankits of the T-scores of the two measurement time points and the Y-axis the differences in means of rankits of the T-scores between the two measurements