Table 1. Demographic details of patients.

Variable		I group	S group	X2or t	aP
Female sex	(male/female)	14/36	18/32	0.735	0.391
Age (y)	(mean±SD)	36.1±7.8	37.9±6.9	-1.18	0.963
Height		162.8±7.2	162.2±6.2	0.466	0.266
Weight		59.5±8.0	59.2±7.3	0.532	0.17
BMI	(kg/m2)	22.4±2.8	22.5±2.7	-0.126	0.676
ASA grade		6/44	5/45	0	1
Intubation time	(min)	96.8±18.9	102.6±24.3	0.102	0.739

Abbreviations: BMI, body mass index(calculated as weight in kilograms divided by height in meters squared);ASA, American Society of Anesthesiologists

^aP values were calculated using chi-square test or t test.