Table 4. Multivariate Cox-regression hazard model for PFS and OS.

	PFS				OS
	P-value	HR	95% CI		P-value	HR	95% CI
Low TS score	0.044	2.87	1.03	7.99	0.356	1.22	0.38	3.46
Strong ERCC1	0.004	10.71	2.10	54.71	0.009	3.73	1.39	10.04
Hepatic metastasis	0.118	2.57	0.79	8.41	0.235	1.11	0.03	2.13

Abbreviations: CI=confidence interval; ERCC1=excision repair cross-complementation group 1; HR=hazard ratio; OS=overall survival; PFS=progression-free survival; TS=thymidine synthase.