APOE and Alzheimer disease: After subsequently adding vascular risk and APOE ε4 status to the models, we found that vascular risk level was inversely associated with expression of the RD and FA patterns (AD: β = −0.058, p = 0.434; RD: β = −0.132, p = 0.048; MD: β = −0.140, p = 0.051; FA: β = −0.161, p = 0.010) while APOE ε4 status did not significantly contribute predictive value for any patterns (AD: β = −0.019, p = 0.797; RD: β = 0.018, p = 0.786; MD: β = −0.012, p = 0.863; FA: β = −0.007, p = 0.915).