Table 1 Description of the database.

Number

143

92

172

230

-

-

Gender (female/male)

82/61

51/41

106/66

115/115

1.5

0.184

Age (years)

75.5 ± 7.7

72.1 ± 7.7

71.8 ± 6.6

75.8 ± 7.1

12.6

< 0.001

MMSE

19.0 ± 4.6

25.0 ± 4.1

28.1 ± 2.1

29.0 ± 1.2

248.1

< 0.001

CDR

0.9 ± 0.5

0.6 ± 0.4

0.5 ± 2.1

0.0 ± 0.1

94.0

< 0.001

First Hospital of Jilin University

AD

MCI

NC

F

P

Number

60

62

73

-

-

Gender (female/male)

27/33

36/26

40/33

1.1

0.325

Age (years)

71.7 ± 9.5

70.5 ± 9.6

75.3 ± 9.1

0.6

0.541

MMSE

17.2 ± 6.1

25.1 ± 3.9

28.5 ± 1.9

120.6

< 0.001

CDR

1.0 ± 0.5

0.7 ± 0.6

0.1 ± 0.2

70.9

< 0.001