表 2.

两组患者苏醒状况比较

Comparison of the awakening status between the two groups (Mean±SD, n=50)

Group	Length of the operation	Recovery time of spontaneous breathing	Awakening time (min)	Extubation time	Rmifentanil dose (μg)
Observation	60.10±0.610	3.23±0.17	10.23±0.19	12.63±0.17	652±14
Contrast	55.82±0.120	3.41±0.18	11.25±0.52	11.23±0.63	822±25
χ 2	0.9559	0.5185	1.560	0.917	21.57
P	0.351	0.822	0.435	0.827	0.028