Table 3. Multivariate survival analysis for overall survival and disease free survival in patients with esophageal cancer.

Prognostic factor	Overall survival		Disease free survival
	HR(95%CI)	P	HR(95%CI)	P
Age	1.25(1.09-1.43)	0.001	1.13(0.99-1.28)	0.073
Gender	0.85(0.72-1.02)	0.073	0.94(0.76-1.16)	0.561
pT category	1.45(1.24-1.79)	<0.001	2.38(2.07-2.74)	<0.001
pN category	2.33(2.01-2.69)	<0.001	1.50(1.28-1.75)	<0.001
Differentiation	1.29(1.12-1.49)	<0.001	1.27(1.11-1.45)	0.001
Tumor location	0.95(0.88-1.03)	0.187	0.96(0.90-1.04)	0.310
Weight loss	1.13(0.99-1.30)	0.078	1.08(0.95-1.23)	0.245
Smoking	1.03(0.84-1.25)	0.807	1.11(0.96-1.29)	0.177
Alcohol	1.21(1.04-1.41)	0.012	1.26(1.10-1.45)	0.001
Fibrinogen level	1.20(1.04-1.38)	0.012	1.18(1.03-1.35)	0.020

Abbreviations: HR, hazard ratio; 95% CI, 95% confidence interval

Bold values are statistically significant (P < 0.05).