Table 2.

Univariate analyses of prognostic factors of survival and recurrence in the younger group

	Survival	Recurrence
	P	P
Epidemiology
Sex: Male	NS	NS
HBs-Ag positive	NS	NS
HCV-Ab positive	0.0172	NS
Biochemical Factors
Albumin <4.0 g/l	0.0088	NS
Total bilirubin ≥0.8 mg/dl	NS	Ns
ICGR15 ≥15	NS	NS
AFP ≥200 ng/ml	NS	NS
Tumor Factors
Number of tumors: multiple	NS	0.0199
Maximum size of tumor: ≥5 cm	0.0034	0.0006
Macroscopic classification: except for simple nodular type	NS	NS
Distant metastasis positive	NS	-
Surgical Factors
Non-anatomical resection	NS	NS
Histological Factors
Differentiation: poor	NS	0.0395
vp2, 3, 4	0.0108	0.0020
im	0.0058	0.0053
cirrhosis	0.0446	NS

AFP, alpha-fetoprotein; HBs-Ag, HBs-antigen; HCV-Ab, HCV-antibody; ICGR15, indocyanin green retention rate at 15 minutes; im, microscopic intrahepatic metastasis; NS, non-significant; vp2, tumor thrombus in the second branches of the portal vein; vp3, tumor thrombus in the first branch of the portal vein; vp4, tumor thrombus extension to the trunk or the opposite side branch of the portal vein.