Table 2. Multi-analysis of disease-free survival.

		95% CI
Variable	HR	Lower	Upper	P-value
Gender	1.070	0.725	1.580	0.733
Age	0.979	0.964	0.994	0.008
Pathology	1.071	0.915	1.254	0.394
Stage	2.025	1.505	2.723	<0.001
CEA	1.532	1.239	1.872	<0.001
ERCC1	1.793	1.205	2.668	0.004

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