marginally statistically significantp = 0.059
We found a statistically significant interaction among continuous residual-based CR and brain-integrity index over time (β = –0.011; p < 0.05), as well as a marginally statistically significant interaction among the top tertile of residual-based CR, brain-integrity index, and time (β = –0.021; p = 0.059; reference: low reserve × brain integrity × time).