Plots depict marginal effects, showing change in cognition (standardized
score) over time, stratified by sex and genotype (APOE
ε4 plot not shown). There were no significant sex
differences in associations between APOE ε2 and global
cognitive decline. The models are adjusted for baseline age, years of education,
and vascular risk, and their interactions with time. Shaded regions represent
95% confidence intervals.