[Retracted] A Comparison between Three-Dimensional Visualization Guided Hepatectomy and Ultrasonography Guided Radiofrequency Ablation in the Treatment of Small Hepatocellular Carcinoma within the Milan Criteria

Table 7

Univariate and multivariate analyses for recurrence-free survival.

Variables	Univariate analysis		Multivariate analysis
	Score	p value	HR (95% CI)	p value
Intervention (RFA versus SR)	12.264	<0.001	1.933 (1.340–1.789)	<0.001
Hepatitis virus infection	5.802	0.122
HBV	3.523	0.061
HCV	3.728	0.053
Both HBV and HCV	0.284	0.594
Liver cirrhosis	1.586	0.208
Diameter (cm)	0.066	0.798	1.411 (1.132–1.759)	0.002
Tumor number	78.531	<0.001	3.903 (2.819–5.404)	<0.001
AFP (≥400 μg/L versus <400 μg/L)	7.146	0.008	1.474 (1.023–2.126)	0.038
Child-Pugh (B versus A)	3.865	0.049

HR: hazard ratio; SR: three-divisional visualization system-guided surgical resection; RFA: radiofrequency ablation; HBV: hepatitis B virus; HCV: hepatitis B virus; AFP: α-fetoprotein.