Evaluation of the 7th edition of the TNM classification in patients with resected esophageal squamous cell carcinoma

Table 3 Univariate and multivariate analyses of the 7^th edition of the TNM classification

	Univariate			Multivariate
	HR	95%CI	P-value	HR	95%CI	P-value
Stage
IA	1.000			1.000
IB	2.919	1.059-8.048	0.038	3.013	1.065-8.530	0.038
IIA	4.771	1.737-13.103	0.002	2.368	0.779-7.198	0.129
IIB	7.251	2.695-19.508	< 0.001	6.472	2.083-20.108	0.001
IIIA	9.062	3.359-24.450	< 0.001	15.152	4.282-53.616	< 0.001
IIIB	12.314	4.514-33.591	< 0.001	23.933	4.960-88.354	< 0.001
IIIC	18.288	6.583-50.804	< 0.001	89.566	18.855-425.471	< 0.001
IV	33.720	11.799-96.369	< 0.001	147.116	21.759-994.681	< 0.001