From: Effect of improving sleep quality the night before surgery with zolpidem on postoperative gastrointestinal function in patients undergoing laparoscopic partial colorectal resection: a randomized, double-blind, controlled trial
Group C
Group Z
Z
P
POD1, coughing
5(0.25)
4.5(1)
-2.434
0.015*
POD1, rest
3(1)
2(1)
-2.848
0.004*
POD3, coughing
4(1)
-4.338
0.000**
POD3, rest
1(1)
-1.472
0.141
POD7, coughing
-1.41
0.158
POD7, rest
0.5(1)
0(1)
-1.699
0.089