Table 2 Patients’ characteristics (Data is presented as Mean ± SD)

Gender(male/female)

6/9

4/5

26/28

12/14

1/4

0.488

Age(years)

35.87 ± 9. 30

39.67 ± 14. 47

41.78 ± 12.45

45.58 ± 11. 20

49.6 ± 6.80

0.073

Height(m)

1.66 ± 0.08

1.68 ± 0.09

1.68 ± 0.07

1.67 ± 0.07

1.62 ± 0.07

0.475

Weight(kg)

64.17 ± 9. 23

68.56 ± 12. 41

70.25 ± 13.12

73.79 ± 14.57

68.10 ± 8.72

0.342

Body mass index

23.11 ± 2.40

24.03 ± 2.13

24.86 ± 4.26

26.24 ± 4.09

25.89 ± 4.10

0.163

(kg*m-2)

Duration of symptoms(months)

8.13 ± 3.85

10.56 ± 14.08

25.02 ± 30.85

31.62 ± 37.11

39.00 ± 35.62

0.217