Figure 2.

Plasma concentrations of Aβ₄₀, Aβ₄₂, and Aβ₄₂/Aβ₄₀. In (A–C), the segments indicate the comparison between three sleep groups in total population. In (D–F), the segments indicate the comparison in subgroups according ApoEε4 status. Aβ₄₀, Aβ₄₂, and Aβ₄₂/Aβ₄₀ matched the normal distribution after the log-transformed, the data are shown as median (interquartile range), indicated by dots and connecting lines.