Total score

ANOVA or

Chi-Square

Normal

MCI

Mild dementia

Moderate to severe

F or X²

p-value

Age

Range

60

−

84

60

−

83

62

−

96

60

−

91

14.212

<0.001*

Mean ± SD

69.515

±

5.719

71.750

±

6.142

77.231

±

7.773

76.895

±

9.116

Sex

Male

53

51.46

25

48.08

10

38.46

5

26.32

4.856

0.183

Female

50

48.54

27

51.92

16

61.54

14

73.68

Education

Illiterate

2

1.94

12

23.08

13

50.00

13

68.42

78.389

<0.001*

Less than 5 years

13

12.62

11

21.15

6

23.08

5

26.32

More than 5 years

88

85.44

29

55.77

7

26.92

1

5.26

Smoking

Smoker

33

32.04

22

42.31

8

30.77

4

21.05

3.318

0.345