Table 3.

The characteristics of sedation

	Group P (N = 352)	Group PM (N = 537)	P value
Anesthetic time (min)	39.7 ± 12.5	39.4 ± 11.1	0.871
Propofol induction dose (mg/kg)	2.4 ± 0.7	1.3 ± 0.5	<0.001
Infusion rate (μg/kg/min)	161.3 ± 38.6	116.2 ± 25.6	<0.001
Total propofol dose (mg)	236.3 ± 102.4	180.7 ± 80.9	<0.001
Time to awake (min)	21.2 ± 5.6	23.0 ± 7.1	<0.001
Time to discharge time (min)	34.5 ± 6.9	38.6 ± 9.4	<0.001

Data are mean ± SD. The data analyzed except eight patients who received general anesthesia