Conventional (n = 82)

Altered (n = 67)

p

Gender

Male (n)

Female (n)

34

48

17

50

0.0558

Mean age (year)

50.23 ± 10.88

46.43 ± 12.61

0.0503

Disease history

Acute (n)

Chronic (n)

18

64

7

60

0.0784

Low abdominal operation (n)

5

3

0.7306