Table 2.

Comparison of administered propofol and recovery time in both groups

	Propofol N = 172	Dex + Propofol N = 129	Median Diff (95% CI)	Difference P-value
Propofol bolus (mg/kg)	3.13 (2.4 – 4.0)	3.05 (2.3 – 3.8)	−0.08 (−0.4, 0.3)	0.659
propofol infusion rate
start: median (min-max)	250 (150-300)	150 (50-300)	−100 (−116.9. −83.1)	<0.0001
end: median (min-max)	200 (150-300)	125 (10-300)	−75 (−96.4, −53.6)	<0.0001
Anesthesia time (minutes)	89 (66 – 114)	90 (67 – 126)	0 (−11.0, 11.0)	0.998
Total Propofol infused (mcg/kg/min)	176.9 (145.7 – 205.9)	114.1 (97.8 – 138.3)	−62.3 (−71.4, −53.2)	<0.0001
Total Propofol given (mcg/kg/min)	215.0 (182.6 – 253.8)	147.6 (127.5 – 180.9)	−67.8 (−80.6, −54.9)	<0.0001
Recovery time (minutes)	28 (17-39)	27 (18 – 41)	−1 (−6.0, 4.0)	0.694

group P, propofol only; group D+P, propofol infusion with dexmedetomidine bolus.

Values are expressed as median (IQR) except Propofol infusion rate at the start and the end.

+ Statistical comparison is based on Wilcoxon ranksum test.