Normal subjects N (%)

Subjects with depression N (%)

Subjects with MCI due to depression N (%)

Subjects with MCI without depression N (%)

Subjects with dementia N (%)

p

Number of subjects = 678

384 (56.6)

40 (5.9)

60 (8.8)

178 (26.3)

16 (2.4)

Age (mean ± sd)

72.5 ± 5.4

74.5 ± 6.1

74.3 ± 6.1

74.3 ± 5.7

75.8 ± 5.9

0.001

Male

73.4 ± 5.4

79.0 ± 7.3

74.5 ± 6.6

74.2 ± 5.6

73.7 ± 8.5

0.055

Female

71.7 ± 5.4

73.3 ± 5.2

74.3 ± 5.9

74.4 ± 5.7

76.3 ± 5.4

<0.001

Sex N (%)

<0.001

Male

187 (63.6)

9 (3.1)

15 (5.1)

80 (27.2)

3 (1.0)

Female

197 (51.3)

31 (8.1)

45 (11.7)

98 (25.5)

13 (3.4)

Years of education N (%)

0.018

0-4

104 (48.1)

18 (8.3)

26 (12.0)

62 (28.7)

6 (2.8)

5-8

264 (59.7)

22 (5.0)

31 (7.0)

115 (26.0)

10 (2.3)

9-12

16 (84.2)

0 (0.0)

2 (10.5)

1 (5.3)

0 (0.0)