Table 2. Univariate and multivariate analysis of pRCC.

Variables	Univariate analysis				Multivariate analysis
	HR	HR 95% low	HR 95% high	P value	HR	HR 95% low	HR 95% high	P value
Age	0.959064	0.920145	0.999629	0.047984	0.985610	0.917089	1.059249	0.693388
Gender	1.451893	0.404361	5.213146	0.567527	0.458258	0.070090	2.996123	0.415339
Stage	2.350466	1.286794	4.293375	0.005431	1.837786	0.254958	13.24707	0.545934
T-stage	1.718677	0.920973	3.207317	0.088879	0.656824	0.101067	4.268619	0.659808
M-stage	70.58455	8.169804	609.8283	0.000109	52.16670	2.739115	993.5196	0.008534
N-stage	2.195298	1.048906	4.594628	0.033691	0.586906	0.104827	3.285962	0.544291
Risk score	1.156975	1.066262	1.255405	0.000465	1.094405	0.956241	1.252532	0.000147

Note: HR: Hazard Ratio.