Table 2. Univariate and multivariate analyses of potential prognostic factors for overall survival.

Variables	Univariate analysis			Multivariate analysis
	HR	95% CI	P-value	HR	95% CI	P-value
Age (< 60 yr vs ≥ 60 yr)	1.35	0.96–1.91	0.09	1.03	0.66–1.60	0.90
ECOG-PS (2 vs 0–1)	2.08	1.39–3.09	< 0.001	1.41	0.79–2.52	0.24
Child-Pugh score (B or C vs A)	1.85	1.28–2.67	0.001	1.07	0.64–1.79	0.79
Hepatitis B/C infection (yes vs no)	1.02	0.69–1.49	0.94
Tumor size (≥ 10 cm vs < 10 cm)	2.62	1.82–3.77	< 0.001	2.00	1.27–3.14	0.003
PVTT location (main/bilateral first branch vs others)	1.22	0.86–1.73	0.26
BED10 (< 56 Gy vs ≥ 56 Gy)	2.64	1.81–3.83	< 0.001	1.83	1.15–2.90	0.01
Overall response (SD/PD vs CR/PR)	2.04	1.31–3.19	0.002	2.00	1.26–3.17	0.003
RT technique (non-SBRT vs SBRT)	1.18	0.71–1.96	0.53