Cases

Controls

T test

Range

Mean ± SD^ǂ

Range

Mean ± SD

t

p-value

Age

60 - 87

69.3 ± 7.84

60 - 86

66.39 ± 7.39

1.41

0.164

Years of education

3 - 16

8.6 ± 3.95

1 - 9

5.3 ± 2.87

1.79

0.093

MMP3

2.5 - 110

67.39 ± 31.99

7 - 110

61.65 - 32.74

0.650

0.519

TIMP1

10 - 41

20.85 ± 6.71

11 - 70

27.69 ± 13.78

−2.43

0.018^*

MMP3/TIMP1 ratio

0.11 - 9.09

3.726 ± 2.23

0.20 ± 6.67

2.96 ± 2.23

1.242

0.22