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

Table 4

Meta-analysis results of intraoperative blood loss.

Study or subgroup	Radio frequency group		Laser group		Weight	Odds ratio, -, fixed, 95% CI
		Total		Total
Liu Jianyong et al.		42		42	22.17%	-0.98 [-0.34, 0.31]
Shuang et al.		37		37	18.09%	0.24 [-0.23, 0.65]
Mourad et al.		30		30	23.11%	0.87 [0.24, 1.35]
Jinhui and Chengyu		64		64	17.09%	0.64 [0.92, 1.22]
Yong et al.		48		47	19.54%	0.67 [0.28, 1.35]
Total (95% CI)		221		220	100.00%	0.43 [0.08, 0.82]

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