Cryotherapy Reduced Postoperative Pain in Gynecologic Surgery: A Randomized Controlled Trial

Table 3

Comparison of primary outcome and secondary outcome (50 cases per group).

	Control	Study	p value
Primary outcome (VAS)
2	5.72±2.25	5.96±2.55	0.619
6	6.08±2.29	3.94±1.89	<0.005
12	5.34±2.19	4.14±1.89	<0.005
Secondary outcome
Morphine consumption	3.32±4.52	2.8±3.35	0.515
Time for dose of morphine	7.17±3.63	10.21±4.52	0.012
Time for dose of morphine	10.78±3.47	15.17±4.24	0.463
Time for dose of morphine	13±1.49	19.67±3.51	0.102
Length of hospital stay	4.74±1.28	4.86±1.28	0.639

: mean ± standard deviation (SD); VAS: visual analog scale score; 2: at 2 hours after procedure; 6: at 6 hours after procedure; 12;: at 12 hours after procedure.