APOE and Alzheimer disease: When adding APOE ε4 status as an additional feature to the imaging LICA features, the performance was significantly improved across all classifications of AD vs. MCI (AUC = 0.677, LICA only 0.669, p = 0.045) and AD vs. SCI (AUC = 0.883, LICA only 0.854, p = 0.0003), but not MCI vs. SCI (AUC = 0.595, LICA only 0.590, p = 0.19), Supplementary Fig. 10).