Table 4.

Comparison of satisfactory degree to Ramsay sedation score (sedation scores of 2 or 3 points) of children at different time points among the three groups, n (%)

Time	D group (n = 125)	DS group (n = 126)	S group (n = 126)	P
Postoperative 2 h	107 (85.6)	105 (83.3)	87 (69.0)a,b	0.005
Postoperative 4 h	127 (100.0)	122 (96.8)	106 (84.1)a,b	< 0.001
Postoperative 6 h	127 (100.0)	127 (100.0)	120 (95.2)a,b	0.001
Postoperative 8 h	127 (100.0)	127 (100.0)	126 (100.0)	> 0.999
Postoperative 12 h	127 (100.0)	127 (100.0)	126 (100.0)	> 0.999
Postoperative 24 h	127 (100.0)	127 (100.0)	126 (100.0)	> 0.999

^a P < 0.05 (Bonferroni adjusted) compared to dexmededomidine group.

^b P < 0.05 (Bonferroni adjusted) compared to dexmededomidine + sufentanil group.

D group: Dexmededomidine group; DS group: Dexmededomidine + sufentanil group; S group: Sufentanil group.