Table 2

HRs for overall survival among patients with ESCC stratified according to clinicopathological characteristics

Variables	Univariate		Multivariate
Variables	HR (95% CI)	P value	HRadj (95% CI)	P value
Age (years)	1.12 (1.02 to 1.23)	0.018	1.13 (1.02 to 1.25)	0.019
Gender
Female	Reference		Reference
Male	0.86 (0.63 to 1.18)	0.351	0.89 (0.69 to 1.15)	0.378
Stage	1.81 (1.11 to 2.95)	0.017	2.07 (1.13 to 3.78)	0.016
Distance of tumour to incisor	0.74 (0.58 to 0.95)	0.017	0.71 (0.54 to 0.94)	0.015
Differentiation degree	2.17 (1.58 to 2.98)	<0.001	2.42 (1.63 to 3.58)	<0.001
Left gastric arterial lymph node metastasis	3.13 (2.15 to 4.56)	<0.001	1.91 (1.19 to 3.07)	0.007
Total no lymph nodes	0.89 (0.81 to 0.98)	0.016	0.99 (0.98 to 1.00)	0.051
Common hepatic arterial lymph node resection
No	Reference		Reference
Yes	0.94 (0.75 to 1.18)	0.613	0.91 (0.73 to 1.13)	0.404