Table 2. Premedication effects and postoperative outcomes.

Variables	Group A (n=104)	Group B (n=104)	Group C (n=104)
Sedation onset (min)	7.0±3.9#	6.0±2.4	NA
Satisfactory separation	94 (90.3)*	96 (92.3)*	84 (80.8)
PSAS	1 [1–1]*	1 [1–1]*	1 [1–2]
MAS	1 [1–2]	1 [1–1]*	1 [1–2]
Extubation time (min)	35.9±9.4	37.1±8.6	37.8±10.1
PACU time (min)	46.7±10.5#	50.7±16.7*	47.1±12.7
PACU events	1	4	3

Data are shown as mean ± standard deviation, number (percentage) or median [interquartile range]. Time of sedation onset, rate of satisfactory separation from parents, rate of satisfactory mask acceptance, time of extubation, and duration in PACU. Group A, 0.03 mg/kg midazolam; Group B, 0.05 mg/kg midazolam; Group C, saline control. *, P<0.01, compared with group C; ^#, P<0.01, compared with group B; NA, not applicable. PSAS, parental separation anxiety scale; MAS, mask acceptance score; PACU, post anesthesia care unit.