Table 1.

Cox regression analysis for the overall survival rates of ccRCC patients.

Variable	Univariate analysis			Multivariate analysis
	HR	95% CI	P	HR	95% CI	P
Age	1.033	1.019-1.047	<0.001	1.036	1.021-1.052	<0.001
Gender	0.931	0.675-1.284	0.663
Grade	2.293	1.854-2.836	<0.001	1.496	1.176-1.904	0.001
Stage	1.889	1.649-2.164	<0.001	1.585	1.007-2.495	0.046
T	1.941	1.639-2.299	<0.001
M	4.284	3.106-5.908	<0.001
OIP5	2.622	1.832-3.751	<0.001	1.594	1.027-2.471	0.037