Table 1.

Patient demographics

	Total (n=105)	Female (n=62)	Male (n=43)	P values (male vs female)
Age (year)	53 (20, 69)	53 (20, 69)	54 (20, 65)	0.757
Weight (kg)	64.0±9.8	60. 6±8.9	68.9±8.7	<0.001
Height (cm)	164.8±8.5	160.0±6.6	171.7±5.9	<0.001
BMI	23.0 (17.0, 33.7)	22.8 (18.8, 33.7)	23.1 (17.0, 30.9)	0.669
VCD (cm)	2.9±0.6	2.9±0.6	3.0±0.6	0.607
TCD (cm)	3.6 (1.3, 6.4)	3.4 (1.3, 6.4)	3.6 (1.9, 6.4)	0.124

Variables are presented as mean±SD (range) or median (range).

BMI, body mass index; TCD, tip-carina distance; VCD, vocal cords-cuff distance.