Table 1. Patients' Demographic Characteristics and Anesthetic Properties.

	i-gel (n = 47)	SLMA (n = 46)	P
Age (yr)	53.8 ± 12.1	55.9 ± 14.9	0.45
Sex (M/F)	21/26	25/21	0.23
ASA I/II/III	9/24/14	9/24/13	0.99
Height (cm)	163.6 ± 7.4	162.7 ± 7.6	0.55
Weight (kg)	64.3 ± 8.9	64.1 ± 11.1	0.93
Anesthesia time (min)	77.0 ± 17.9	72.0 ± 17.0	0.17
Pneumoperitoneum time (min)	36.1 ± 14.6	32.3 ± 15.3	0.22

Data are presented as mean ± standard deviation, or numbers. ASA: American Society of Anesthesiologist, SLMA: Supreme laryngeal mask airway.