Group

cases

24 h after surgery

48 h after surgery

72 h after surgery

Control group

49

5.81 ± 1.60

6.56 ± 6.94

4.57 ± 1.49

Observation group

49

5.15 ± 1.50

3.93 ± 1.26

3.18 ± 1.07

T value

-

2.086

2.611

5.282

P value

-

0.040

0.012

<0.001