Table 2.

Univariate and multivariate Cox regression analyses of the contribution of various potential prognostic factors to survival.

	Univariate Cox regression			Multiple Cox regression
	HR	95% CI	p-value	HR	95% CI	p-value
TCGA
Age (years)	1.007	0.994–1.021	0.286	1.013	0.999–1.028	0.067
Gender	1.097	0.849–1.416	0.480	0.985	0.761–1.274	0.908
Stage	1.485	1.310–1.683	<0.001	1.228	0.901–1.675	0.194
T	1.547	1.275–1.878	<0.001	1.183	0.925–1.512	0.180
M	1.859	1.102–3.137	0.020	1.222	0.528–2.829	0.639
N	1.478	1.273–1.717	<0.001	1.186	0.906–1.552	0.214
Risk score	2.947	2.144–4.052	<0.001	2.547	1.829–3.547	<0.001

TCGA, The Cancer Genome Atlas; T, tumor; N, node; M, metastasis.