Group

Number of cases

30 minutes before anesthesia

1 h after surgery

4 h after surgery

12 h after surgery

24 h after surgery

Control Group

90

28.92 ± 0.98

21.13 ± 0.65

23.17 ± 1.23

25.59 ± 1.16

27.98 ± 1.03

Observation Group

90

28.86 ± 1.01

20.97 ± 0.54

26.33 ± 1.27

27.68 ± 1.04

28.45 ± 0.98

t

0.238

2.35

3.11

2.89

2.63

P

0.572

0.273

0.004

0.046

0.61