TABLE 3.

Ramsay sedation scores of children at 1, 2, 6, 12, 24, and 48 h after arrival to the ward between Group ND and Group SD.

	ND (n = 200)	SD (n = 200)	t	P
1 h after surgery	3.31 ± 0.50	3.26 ± 0.45	1.051	0.294
2 h after surgery	3.26 ± 0.48	3.18 ± 0.52	1.599	0.111
6 h after surgery	3.17 ± 0.47	3.02 ± 0.40	3.437	0.006
12 h after surgery	3.08 ± 0.41	2.99 ± 0.29	2.534	0.012
24 h after surgery	2.32 ± 0.57	2.19 ± 0.23	2.991	0.003
48 h after surgery	2.05 ± 0.50	1.93 ± 0.15	3.251	0.001

Statistical analysis was performed by unpaired t test.