Effect of different types of laryngeal mask airway placement on the right internal jugular vein: A prospective randomized controlled trial

Table 1 Baseline demographics and characteristics

	Group 1, n = 32	Group 2, n = 39	Group 3, n = 29	P value
Gender, Male/Female	2/30	6/33	5/24	0.342
Age in yr	50 ± 16	49 ± 15	49 ± 16	0.932
Height in cm	163 ± 5	164 ± 6	163 ± 7	0.626
BMI in kg/m2	23 ± 3	23 ± 3	23 ± 3	0.754
ASA, I/II	17/15	26/13	18/11	0.503
LMA size, 3/4/5	4/27/1	3/35/1	5/23/1	0.807

ASA: The American Society of Anesthesiologists; BMI: Body mass index; LMA: Laryngeal mask airway.