Comparison of Pressure Changes by Head and Neck Position between High-Volume Low-Pressure and Taper-Shaped Cuffs: A Randomized Controlled Trial

Table 1

Patient characteristics of each group presented as mean ± SD or number of patients. HVLP group: trachea was secured with a high-volume and low-pressure cuffed tracheal tube; Taper group: trachea was secured with taper cuffed tracheal tube.

	HVLP group	Taper group
Age (years)	61.8 ± 12.9	64.9 ± 12.7
Gender (male/female)	10/10	10/10
Body weight (kg)	59.4 ± 13.7	57.3 ± 7.9
Height (cm)	161.6 ± 7.5	159.5 ± 9.9
BMI (kg/m^2)	22.6 ± 4.6	22.5 ± 2.5
Mallampati score (1/2/3/4)	8/11/1/0	7/12/1/0
Cormack-Lehane grade (1/2/3/4)	11/8/1/0	9/11/0/0
Tracheal tube size (7.0/7.5/8.0/8.5)	2/11/6/1	3/7/8/2

BMI: body mass index.
ASA: American Society of Anesthesiologists.