Table 4. Stepwise multivariate Cox proportional hazard model for independent predictors for postoperative survival.

Factors	Mutivariate
	HR	95%CI		p-value
Disease-free survival
High AOC4P (≧0.25 vs <0.25)	0.59	0.37	0.94	0.027*
Capsule invasion (Presence vs Absence)	0.44	0.21	0.94	0.033*
Vessel invasion (Presence vs Absence)	1.82	1.12	2.98	0.016*
Overall survival
High AOC4P (≧0.25 vs <0.25)	0.49	0.28	0.85	0.011*
Alb (≧4 vs <4)	0.56	0.33	0.93	0.026*