Table 2.

Postanesthesia care unit events that could delay recovery from anesthesia

Events of treatments	Prolonged recoverya		P value
	No (n=477)b	Yes (n=304)c
Respiratory-specific events	6 (1.3)	29 (9.5)	<0.001
Postoperative nausea and vomiting	92 (19.3)	106 (34.9)	<0.001
Intravenous morphine equivalents, median (interquartile), mg	5.0 (0.0–10.5)	10.0 (3.0–15.0)	<0.001
Antihypertensive medication administrationd	33 (6.9)	49 (16.1)	<0.001
Vasopressor medication administratione	0	2 (0.7)	0.15

^aValues are presented as number and percentage of patients unless specified otherwise

^bPhase I postanesthesia recovery ≤90 min

^cPhase I postanesthesia recovery >90 min

^dHydralazine was administered to 3 patients discharged in ≤90 min and to 13 patients discharged in >90 min. Labetalol was administered to 43 vs 29 patients and metoprolol to 2 vs 2 patients in the groups discharged in ≤90 vs >90 min, respectively

^ePhenylephrine boluses were administered to 2 patients