Table 3.

Multivariate analysis of factors associated with RFS and OS in aged group

	Hazard ratio (95% CI)	P-value
RFS
AFP level (0=<400 ng/mL, 1=≥400 ng/mL)	2.039 (1.233–3.373)	0.006
Microvascular invasion (0= negative, 1= positive)	4.871 (2.876–8.251)	<0.001
Tumor size (0=≤5 cm, 1=>5 cm)	2.698 (1.646–4.422)	<0.001
OS
AFP level (0=<400 ng/mL, 1=≥400 ng/mL)	2.086 (1.255–3.469)	0.005
Microvascular invasion (0= negative, 1= positive)	4.802 (2.855–8.076)	0.001
Tumor size (0=≤5 cm, 1=>5 cm)	2.906 (1.769–4.773)	<0.001

Abbreviations: AFP, alpha-fetoprotein; CI, confidence interval; OS, overall survival; RFS, recurrence-free survival.