Table 3. Cox proportional hazard analysis.

Variable	HR	95% CI	P value
Surgery
Hepatectomy	0.039	0.009–0.162	<0.0001
Liver transplantation	0.142	0.028–0.716	0.018
No surgery	ref	ref	ref
Sex
Male	3.614	1.075–12.152	0.038
Female	ref	ref	ref
Postoperative chemotherapy
Yes	–	–	0.296
No	ref	ref	ref

HR, hazard ratio; CI, confidence interval; ref, reference.