Table 1 Demographic, clinical, and cognitive characteristics

N

44

114

41

-

Age in years (SD)

69.07 (5.31)

72.19 (7.45)

75.65 (6.53)

9.81 (2, 196)

< 0.001

HC vs MCI, p = 3e-03;

HC vs AD p = 3e-05;

MCI vs AD, p = 3e-03

Gender (F:M)

31: 13

72: 42

24: 17

0.67 (2, 196)

NS

Highest level of education

16.5 (2, 196)

2e-07

HC vs MCI, p = 0.28;

HC vs AD p = 2e-07;

MCI vs AD, p = 2e-06

Less than high school

1

6

10

High school graduate

2

10

8

Partial University

2

9

7

University degree

26

65

10

Graduate degree

13

24

6

MoCA score (SD)

27.65 (1.31)

23.75 (2.46)

17.17 (3.93)

168.61 (2, 196)

1e-44;

HC vs MCI, p = 2e-24;

HC vs AD p = 4e-45;

MCI vs AD, p = 7e-32