Table 2.

Comparison of postoperative pain in experimental and control groups

Variables	Groups of study		Test statistic value	P
	Control (n=28)	Experimental (n=28)
Total VAS after tonsillectomy (mean±SD)	7.16±0.75	4.05±0.57	U<0.00001	<0.001*
VAS based on days after tonsillectomy (mean±SD)
1st day	9.82±0.39	9.39±0.74	U=270.00	0.015*
2nd day	9.50±0.51	7.93±0.81	U=56.00	<0.001*
3rd day	8.75±0.44	6.61±0.88	U=21.00	<0.001*
4th day	8.04±0.64	5.46±0.92	U=16.00	<0.001*
5th day	7.50±0.96	4.36±0.87	U=13.00	<0.001*
6th day	6.86±1.15	3.13±0.96	U=9.50	<0.001*
7th day	6.25±1.11	1.88±0.96	U=4.00	<0.001*
8th day	5.61±1.32	1.08±0.81	U=4.00	<0.001*
9th day	4.86±1.27	0.50±0.64	U=1.00	<0.001*
10th day	4.43±1.29	0.18±0.39	U<0.00001	<0.001*

SD=Standard deviation, U=Mann-Whitney U test. The total mean value of visual Analog Scale for all 10 days on post-operative recovery after adult tonsillectomy (based on objective pain score 0-10). *Significant at level of 5%