Table 5. The predictive values of the adopted factors with pTNM stage for OS and RFS by ROC analysis.

Variables	OS			RFS
	Area	95%CI	P	Area	95%CI	P
Vascular invasion	0.700	0.631 to 0.770	0.000	0.670	0.599 to 0.742	0.000
Combination of intratumoral iNKT cells and IFN-γ	0.654	0.582 to 0.725	0.000	0.633	0.561 to 0.706	0.001
Tumor encapsulation			NA	0.616	0.542 to 0.689	0.003
Tumor size	0.620	0.547 to 0.694	0.002			NA
Tumor number			NA	0.554	0.478 to 0.629	0.165
Liver cirrhosis	0.555	0.480 to 0.630	0.156			NA
Tumor differentiation	0.597	0.523 to 0.671	0.012			NA
pTNM stage	0.672	0.600 to 0.743	0.000	0.643	0.571 to 0.715	0.000
intratumoral iNKT cells	0.618	0.544 to 0.691	0.002	0.591	0.517 to 0.666	0.018
Intratumoral IFN-γ	0.608	0.534 to 0.682	0.005	0.604	0.530 to 0.678	0.007

Abbreviations: OS, overall survival; RFS, recurrence-free survival; NA, not adopted; TNM, tumor-node-metastasis; iNKT cells, invariant natural killer T cells; IFN-γ, interferon gamma.