APOE and psychotic disorder: Female APOE4 homozygotes were 3.8 times more likely to experience psychosis compared to female APOE4 non-carriers (OR = 3.8, 95%CI [1.6, 9.2], p = 0.003), and 3.7 times more likely compared to male APOE4 homozygotes (OR = 3.7, 95%CI [1.5, 9.3], p = 0.006), in the unadjusted model.