Table II.

Univariate Cox regression analysis of potential prognostic factors for patients with esophageal squamous cell carcinoma.

		Overall survival
Characteristics	Patients, n	HR (95% CI)	P-value
Sex			0.0411
Female	26	1
Male	146	2.486 (1.032–3.728)
Age (years)			0.7015
≥60	88	1
<60	84	1.097 (0.6811–1.775)
Stage (TNM)			<0.0001
I–II	92	1
III–IV	59	2.889 (2.048–6.533)
Risk			0.0239
Low	126	1
High	46	1.69 (1.083–3.173)

HR, hazard ratio; CI, confidence interval; TNM, Tumor-Node-Metastasis.