Table 2.

NP tests selected by different feature selection methods for different subpopulations

	CART	CBFSGS	Information gain	Majority voting
Total	LMd, VRd, LMi, VRi, BNT30	LMd, VRd, BNT30, PASi, LMi	VRd, LMd, LMi, VRi, BNT30	LMd, VRd, LMi, VRi, BNT30
Sex
Male	LMd, VRd, LMi, BNT30, VRi	LMd, VRd, BNT30, LMi, SIM	LMd, VRd, LMi, BNT30, VRi	LMd, VRd, LMi, BNT30, VRi
Female	LMd, VRd, PASi_h, LMi, PASi	VRd, LMd, BNT30, PASi, LMi	VRd, LMd, LMi, PASi, PASi_h	LMd, VRd, PASi_h, LMi, PASi
APOE ε4 allele∗
APOE ε4 (−)	LMd, VRd, LMi, BNT30, VRi	LMd, VRd, BNT30, SIM, LMi	VRd, LMd, LMi, VRi, BNT30	LMd, VRd, LMi, BNT30, VRi
APOE ε4 (+)	LMd, VRd, LMi, PASd_h, PASi_h	LMd, VRd, LMi, BNT30, VRi	LMd, VRd, LMi, PASi, VRi	LMd, VRd, LMi, VRi, PASi
Education
High school and below	LMd, VRd, BNT30, LMi, VRi	LMd, VRd, BNT30, LMi, SIM	LMd, VRd, LMi, BNT30, VRi	LMd, VRd, BNT30, LMi, VRi
Beyond high school	LMd, VRd, LMi, PASd_h, PASi	VRd, LMd, PASi, BNT30, VRi	VRd, LMd, VRi, PASi, LMi	LMd, VRd, LMi, VRi, PASi

NOTE. Participants who did not consent to genetic analyses, had an APOE ε2/ε4 genotype, or with no APOE information were excluded.

Abbreviations: APOE, apolipoprotein E; BNT30, Boston Naming Test (30-item Even Version); CBFSGS, Correlation-based Feature Selection Adapting Greedy Search; LMd, Logical Memory (Delayed Recall); LMi, Logical Memory (Immediate Recall); NP, neuropsychological; PASd_h, Hard score of Paired Associate Learning (Delayed Recall); PASi, Paired Associate Learning (Immediate Recall); PASi_h, Hard Score of Paired Associate Learning (Immediate Recall); SIM, Similarities Test; VRd, Visual Reproductions (Delayed Recall); VRi, Visual Reproductions (Immediate Recall).

^∗APOE ε4 (−): APOE genotype ε2/ε2, ε2/ε3 or ε3/ε3; APOE ε4 (+): APOE genotype ε3/ε4 or ε4/ε4.