Table 3.

Intergroup comparison of the elapsed time (hours) as a function of pain perception (initial, maximum, decline, and absence) (nonparametric Mann–Whitney test).

Pain perception (hours)	Laser group (n = 28)		Control group (n = 26)		P
	Median	IR	Median	IR
Initial	0.50	3.53	2.50	3.00	0.066
Maximum	4.40	24.00	15.88	18.75	0.026∗
Decline	17.25	46.84	40.59	34.00	0.025∗
Absence	31.23	95.91	89.00	114.67	0.008∗

^∗ Statistically significant difference (p < 0.05).