Carbon Dioxide Laser Microsurgery versus Low-Temperature Plasma Radiofrequency Ablation for T1a Glottic Cancer: A Single-Blind Randomized Clinical Trial

Table 1

Baseline characteristics of patients with T1a glottic cancer.

Variables	CO2-LS	LTP-RFA	p-value
n	65	66	-
Age, year, mean (SD)	56.71 (9.90)	57.15 (10.5)	0.82
Female/Male	55/10	53/13	0.52
BMI, kg/m^2	23.98 (3.77)	23.61 (4.03)	0.40
Smoking, Yes/No	22/43	29/37	0.24
Alcohol abuse, Yes/No	11/54	9/57	0.60
Surgery time, minute, mean (SD)	12.49 (1.40)	8.83 (1.59)	<0.00001
Follow-up, mouth, mean (range)	33 (15-70)	36 (22-65)	0.43