Fig. 1.

Cross-sectional baseline PSMD across study groups. The baseline PSMD data for each group are shown in box plots. Univariate tests of significance between groups are indicated by the brackets with unadjusted p-values. After adjusting for age, sex, and education, PSMD in CAA was higher than NC (adjusted p = .005) and MCI (adjusted p = .005), while AD was no longer significantly different (adjusted p = .19). The median (solid line within each box), mean (dashed red line within each box), 25th and 75th percentiles (extent of each box) as well as the 10th and 90th percentile (error bars) are shown. Outliers are indicated by the symbols for each group. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)