Table 1 Demographic data and cognitive screening tests by group (all subjects)

Age

79.9 ± 6.49

78.01 ± 7.75

80 ± 6.07

ns

ns

ns

Gender

Male

79 (77.5%)

58 (72.5%)

21 (38.2%)

Female

23 (22.5%)

22 (27.5%)

34 (61.8%)

Education level (years)

12.57 ± 4.19

12.73 ± 3.15

11.20 ± 4.19

**

ns

ns

MMSE

22.72 ± 3.95

27.30 ± 2.08

29.35 ± 1.16

**

**

**

MoCA-BJ

15.42 ± 4.40

22.79 ± 3.30

27.87 ± 1.74

**

**

**

CDR scale

1.12 ± 0.64

0.50 ± 0.00

0.00 ± 0.00

**

**

**