Table 3.

Multivariate analysis in regard to overall survival for 56 patients with EASC

Prognostic factor	Hazard Ratio	95%CI	P value
Tumor length	1.424	0.713–2.844	0.316
Thoracotomy	0.562	0.241–1.311	0.183
Resection margin	3.718	1.390–9.947	0.009
pN category	2.477	1.176–5.218	0.017
Adjuvant chemotherapy	4.197	1.153–15.280	0.011

CI confidence interval