Table 3. Multi-analysis of overall survival.

		95% CI
Variable	HR	Lower	Upper	P-value
Gender	1.134	0.752	1.709	0.550
Age	0.973	0.957	0.989	0.001
Pathology	1.066	0.901	1.262	0.454
Stage	1.854	1.854	1.367	<0.001
CEA	1.459	1.459	1.179	0.001
ERCC1	1.971	1.971	1.288	0.002

Abbreviations: CEA= carcinoembryonic antigen; CI=confidence interval; ERCC1=excision repair cross-complementation group 1; HR=hazard ratio.