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. 2026 Feb 21;17:58. doi: 10.1186/s13293-026-00860-6

Table 2.

Mean and standard deviation for the Digit Symbol Substitution Test (DSST) and Modified Mini-Mental Status Examination (3MS) across time points across sexes and APOE genotypes

Test Sex Year APOE ε2 APOE ε3 APOE ε4
DSST Female 1 37.1 (14.4) 37.7 (14.3) 35.5 (15.6)
5 35.5 (13.5) 35.0 (13.9) 31.9 (14.8)
8 33.3 (13.6) 33.2 (14.2) 29.7 (14.5)
10 32.5 (13.6) 32.2 (13.8) 28.3 (14.6)
Male 1 31.8 (15.1) 35.1 (14.0) 32.0 (15.0)
5 30.0 (14.5) 32.8 (13.9) 29.0 (14.8)
8 28.5 (14.4) 30.4 (13.6) 26.2 (14.5)
10 27.1 (13.6) 29.4 (13.4) 25.4 (14.1)
3MS Female 1 90.7 (7.7) 91.2 (7.3) 89.2 (9.8)
3 90.2 (8.2) 90.5 (7.9) 87.5 (10.9)
5 90.0 (8.8) 90.0 (8.6) 86.9 (12.0)
8 88.5 (9.2) 87.6 (10.1) 84.3 (12.8)
10 87.9 (10.2) 86.8 (11.0) 83.0 (14.0)
Male 1 89.2 (9.6) 90.3 (7.9) 87.6 (9.5)
3 88.6 (9.8) 89.8 (8.6) 86.1 (11.1)
5 88.7 (9.9) 90.2 (8.5) 86.6 (10.5)
8 86.4 (11.4) 87.3 (9.8) 82.4 (13.3)
10 86.1 (11.3) 87.0 (10.3) 81.4 (13.9)