Surgical vs percutaneous radiofrequency ablation for hepatocellular carcinoma in dangerous locations

Table 4 Univarite and multivariate analysis of relative risks for local tumor progression

Variable	Univariate analysis	Multivariate analysis
	P value	Relative risk (95% CI)	P value
Percutaneous vs surgical RFA	0.000	14.315 (4.857-25.412)	0.000
Age (yr) (> 60 vs ≤ 60)	0.402
HBV- infected (Y vs N)	0.455
Child-Pugh (B vs A)	0.038
Albumin (IU/L), ≤ 35 vs > 35	0.233
Total bilirubin (mg/L), > 10 vs ≤ 10	0.010	8.124 (2.325-101.587)	0.012
Serum AFP (ng/mL), ≥ 400 vs < 400	0.019
Prothrombin time, ≤ 15’vs > 15’	0.512
Tumor size (cm), > 3 vs ≤ 3	0.003	11.741 (3.754-21.665)	0.005
Tumor number, multiple vs single	0.111

RFA: Radiofrequency ablation; HBV: Hepatitis B virus; AFP: α fetoprotein.