nominally significantP =0.015
Stratifying by quartiles of the genetic score, we only found a nominally significant effect of quantile 4 compared with quantile 1 of the score on FA (OR, 0.73; 95% CI, 0.57–0.94; P =0.015).Odds ratios±SE for WMH, FA, and MD based on the quartiles of the genetic score were plotted (Figures I through III in the online-only Data Supplement ).