When incorporating baseline computerized neuropsychological test performance, there was a slight reduction in the HR for the MBI‐psychosis*APOE ε4 interaction term but the Cis largely overlapped with the model that did not include general cognition as a covariate (HR: 3.9, 95% CI: 1.3–11.3, p = 0.01). This evidence concerns the gene APOE and psychotic disorder.