APOE and Alzheimer disease: Shown based on diagnostic group, this resulted in: NC, 52 APOE ε4− and 19 APOE ε4+; CINM, 73 APOE ε4− and 26 APOE ε4+ in CINM; MCI, 115 APOE ε4− and 43 APOE ε4+; and AD, 62 APOE ε4− and 50 APOE ε4+.