Table 4.

Univariate and multivariate Cox regression analysis of clinical pathologic features according to the TCGA-ccRCC dataset

Parameters	Univariate analysis				Multivariate analysis
	HR	95%CI	p		HR	95%CI	p
Age
≥60 vs <60	1.808	1.321–2.478		0.000	1.563	1.140–2.144	0.006
Gender
Female vs male	1.060	0.779–1.442		0.710	-	-	-
Clinical stage
III/IV vs I/II	3.838	2.799–5.292		0.000	3.675	2.676–5.046	0.000
Smoking history
2/3/4/5 vs 1	0.778	0.254–2.383		0.661	-	-	-
ABCG1 expression
High vs low	0.665	0.492–0.898		0.008	0.662	0.490–0.895	0.007