Table 4.

Group-wise comparison of the mean pain scores preoperatively, after 6 hours, 24 hours, 72 hours, and 1 week

Pain	Mean ± SD	p valuea	Minimum	Maximum
Preoperative pain
Group I	1.92 ± 0.83	p > 0.05	1	3
Group II	1.76 ± 0.77		1	3
Group III	1.96 ± 0.72		1	3
Postoperative pain at 6 hours
Group I	0.88 ± 0.9	p < 0.05*	0	3
Group II	0.44 ± 0.71		0	3
Group III	0.31 ± 0.61		0	2
Postoperative pain at 24 hours
Group I	0.29 ± 0.69	p > 0.05	0	2
Group II	0.12 ± 0.44		0	2
Group III	0.12 ± 0.43		0	2
Postoperative pain at 72 hours
Group I	0		0	0
Group II
Group III
Postoperative pain at 1 week
Group I	0		0	0
Group II
Group III

^*SD, standard deviation

^aKruskal–Wallis non-parametric test,

^*p < 0.05, significant