Table 1 The general condition of all subjects

 Mean ± SD

65.00 ± 9.54

65.14 ± 8.48

0.967^a

 Range

51~87

48~75

 Male

3 (23.1)

3 (21.4)

1.000^b

 Female

10 (76.9)

11 (78.6)

 right

6 (46.2)

4 (28.6)

0.440^b

 left

7 (53.8)

10 (71.4)

 Mean ± SD

9.23 ± 6.53

9.00 ± 5.89

0.924^a

 Range

3~18

3~18

 No prominent damage

7 (53.8%)

2 (14.4%)

0.019^c

 mild

5 (38.5%)

6 (42.6%)

 advanced

1 (7.7%)

6 (42.6%)

 Yes

12 (92.3)

1 (7.1)

<0.001^b

 No

1 (7.7)

13 (92.9)