Meta-Analysis of Low Temperature Plasma Radiofrequency Ablation and CO₂ Laser Surgery on Early Glottic Laryngeal Carcinoma

Table 5

Results of meta-analysis of postoperative pain degree.

Study or subgroup	Radio frequency group		Laser group		Weight	Odds ratio, -, fixed, 95% CI
		Total		Total
Semmler et al.		93		93	19.89%	-0.07 [-0.35, 0.26]
Liu Jianyong et al.		42		42	17.98%	-0.31 [-0.65, 0.09]
Jun et al.		47		46	13.12%	-0.32 [-0.76, 0.29]
Jinhui and Chengyu		64		64	15.09%	0.16 [-0.45, 0.65]
Yuke et al.		52		52	33.92%	-0.75 [-1.25, -3.08]
Total (95% CI)		298		297	100.00%	0.16 [-0.44, 0.10]

Heterogeneity: ; , (); . Test for overall effect: ().