Table 2.

Analysis of the independent factors for overall survival of all ESCC patients, Guangzhou, 2005–2010 (N=944 )

Variables	Univariate analysis			Multivariate analysis
	HR	95% CI	p	HR	95% CI	p
Gender	1.113	0.816–1.520	0.499
Age	1.016	1.006–1.027	0.002	1.018	1.008–1.028	0.001
ALB	0.992	0.972–1.013	0.471
GLB	1.013	0.995–1.032	0.161
CEA	1.034	1.008–1.061	0.009	1.033	1.007–1.060	0.012
Tumor site	0.976	0.835–1.142	0.764
Tumor size	1.027	0.977–1.080	0.299
Differentiation	1.098	0.967–1.245	0.150
TNM	1.933	1.663–2.247	<0.001	1.983	1.714–2.293	<0.001
Smoking index	1.323	1.009–1.735	0.043	1.214	1.002–1.471	0.048