Table 3.

Comparison of Pain and Sedation Scores at Different Postoperative Intervals

Pain/sedation	Postoperative interval				P value
	1 h	2 h	3 h	4 h
Pain score
Group BD	0 (0, 3)	0 (0, 3)	0 (0,1)	0 (0, 0)	<0.001
Group BO	3 (2, 5)	1 (0, 2)	0 (0,1)	0 (0, 0)	0.003
P value*	<0.001	<0.047	0.765	1.000
Sedation score†
Group BD	2 (0, 4)	1 (0, 2)	0 (0, 1)	0 (0, 0)	<0.001
Group BO	0 (0, 1)	0 (0, 1)	0 (0, 0)	0 (0, 2)	0.801
P value	<0.001	<0.001	<0.001	0.283

Values are presented as median (range). The pain score was assessed according to the Children and Infants Postoperative Pain Scale (CHIPPS).

Group BD: bupivacaine + dexmedetomidine, Group BO: bupivacaine + normal saline.

^*P value for Friedman test.

^†P value for Mann-Whitney U test.