Table 3.

Intraoperative demographics

	Control	Obstructive respiratory dysfunction
	(n = 180)	(n = 45)	P value
Operation time, min	100 [86–132]	102 [86–117]	0.992
Anesthesia time, min	163 [138–204]	168 [142–188]	0.787
Fentanyl, μg	200 [200–300]	200 [200–300]	0.914
Maintenance concentration of DES, %	5 [4–5]	4 [4–5]	0.002*
Age-adjusted MAC fraction	0.90 [0.84–0.99]	0.88 [0.85–0.99]	0.715
Extubation time, min	7 [5.3–10]	9 [7–12.5]	0.014*
Prolonged extubation (≥ 10min)	47 (26.1)	19 (42.2)	0.034*

DES desflurane, MAC minimum alveolar concentration

*P < 0.05