TABLE 3.

Cognitive decline (change scores) within and between the two groups

	APOE ε4 Carriers (N=20)	APOE ε4 Within-Group (t[df]; p)	Non-APOE ε4 Carriers (N=29)	Non-APOE ε4 Within-Group (t[df]; p)	Between-Group (t[df]; p)
BFR	−14.4 (18.9)**	−3.4[19]; 0.003	−4.2 (12.5)	−1.8[28]; 0.08	2.1[47]; 0.03*
Rey copy	−1.9 (4.9)**	−3.3[19]; 0.004	−2.9 (5.1)**	−3.6[28]; 0.001	−0.7[47]; 0.5
Rey delayed recall	−2.2 (3.1)	−1.7[19]; 0.1	−2.4 (3.6)**	−3.1[28]; 0.005	−0.16[47]; 0.9
CFL	1.3 (9.4)	0.6[19]; 0.5	2.0 (8.1)	1.3[28]; 0.18	0.29[47]; 0.8
BNT	−2.2 (8.3)	−1.2[19]; 0.2	−0.7 (1.5)*	−2.3[28]; 0.03	0.8[19.9]; 0.4

Note: Values are mean (standard deviation), unless otherwise indicated.

BFR: Buschke-Fuld Selective Reminding, Total Score, a measure of verbal memory;³⁰ Rey copy: Rey-Osterrieth Complex Figure, Copy, a measure of visuospatial functioning;³¹ Rey delayed: Rey-Osterrieth Complex Figure, Delayed Recall,³¹ a measure of nonverbal memory; CFL: test of verbal fluency;³² BNT: Boston Naming Test, a measure of naming.³³

^*p<0.05 within-or between-group comparisons in the test change scores;

^**p<0.01 within-or between-group comparisons in the test change scores.