Table 1:

Essential demographic data of the included study groups of stable and deteriorating elderly control participants^{^a}

Group	sCON Alleles			dCON Alleles			APOE Allele Effect 3/3 vs 3/2 (P Value)	APOE Allele Effect 4/3 vs 3/2 (P Value)	Group Effect (P Value)	Interaction 1 (P Value)	Interaction 2 (P Value)
Group	3/2	3/3	4/3	3/2	3/3	4/3	APOE Allele Effect 3/3 vs 3/2 (P Value)	APOE Allele Effect 4/3 vs 3/2 (P Value)	Group Effect (P Value)	Interaction 1 (P Value)	Interaction 2 (P Value)
No.	22	132	27	21	142	38
Sex							.734	.411	.172	.261	.359
Female	13	83	19	8	86	26
Male	9	49	8	13	56	12
Education (yr)							.466	.324	.676	.808	.450
<9	3	23	4	3	27	3
9–12	8	53	14	9	72	20
>12	11	56	9	9	43	15
Age (yr)							.980	.969	.377	.952	.539
Mean	73.7	73.7	73.8	74.8	74.9	73.9
SD	3.2	3.9	4.2	4.4	4.2	4.0