Table 1 Description of the dataset used in this work.

Number of subjects

52

65

34

38

Age (years)

72.6 ± 5.9

73.0 ± 7.7

73.5 ± 6.6

73.8 ± 8.7

p = 0.80^a

Gender (female/male)

29/23

39/26

21/13

20/18

χ² = 3.12, p = 0.37^b

MMSE

28.9 ± 1.2

28.2 ± 1.5

27.3 ± 1.8

23.4 ± 1.7

p < 0.01^a*

CDR-SB

0.0 ± 0.1

1.2 ± 0.6

1.7 ± 0.8

4.6 ± 1.4

p < 0.01^a*

RAVLT

45.4 ± 9.7

36.5 ± 10.2

30.7 ± 8.9

22.6 ± 7.0

p < 0.01^a*

FAQ

0.2 ± 0.9

2.3 ± 3.7

4.3 ± 4.8

14.6 ± 6.6

p < 0.01^a*

ADAS11

5.2 ± 3.0

8.1 ± 3.6

12.5 ± 4.9

20.2 ± 7.6

p < 0.01^a*

ADAS13

8.4 ± 4.4

13.3 ± 5.4

20.2 ± 6.7

30.0 ± 9.0

p < 0.01^a*