Table 3.

Univariate analysis of all variables that significantly affected tumor-free survival

Predictors	Relative risk	95% CI	P
Total tumor size (≤ 9 cm vs > 9 cm)	2.291	1.654-3.173	0.000
Tumor number (≤ 4 vs > 4)	1.127	1.052-1.207	0.003
Bilobar disease	2.206	1.327-3.666	0.002
Macrovascular invasion	2.951	2.160-4.032	0.000
Microvascular invasion	4.479	2.126-9.436	0.000
Positive lymph nodes	12.472	4.457-34.898	0.000
Differentiation	1.641	1.014-2.654	0.044
Capsule invasion	1.462	1.092-1.957	0.011