Table 1 Study 1 demographic data

Age

73 (7)

76 (8)

< 0.001

Gender

0.002

 Female

3709 (66%)

362 (60%)

 Male

1913 (34%)

246 (40%)

Education (years)

16.24 (2.81)

16.08 (3.09)

0.24

APOE status

0.4

 Neg.

2608 (70%)

351 (68%)

 Pos.

1134 (30%)

167 (32%)

Race

0.21

 White

4499 (80%)

480 (79%)

 Black or African American

853 (15%)

107 (18%)

 Asian

148 (2.6%)

10 (1.6%)

 American Indian or Alaska Native

40 (0.7%)

7 (1.2%)

 Native Hawaiian or other Pacific Islander

6 (0.1%)

0 (0%)

 Others

32 (0.6%)

2 (0.3%)

 Unknown

44 (0.8%)

2 (0.3%)

Number of visits

2.25 (1.2)

3.21 (0.94)

< 0.001

MoCA

26.1 (2.9)

24.6 (3.3)

< 0.001

UDS 3 global composite

0.05 (0.57)

− 0.25 (0.59)

< 0.001