Table 2.

Univariate and multivariate analysis of prognostic variables for cancer-specific survival in patients with ccRCC.

Variable	No. of patients	Univariate analysis		Multivariate analysis
		P	Hazard ratio (95% CI)	P	Hazard ratio (95% CI)
Age
>60	136
< = 60	128	0.003	1.981(1.260–3.114)	0.007	1.865(1.185–2.938)
Sex
female	92
male	172	0.536	1.149(0.741–1.781)	—	—
Tumor stage
< = pT2	158
> = pT3	106	<0.001	3.881(2.419–6.226)	<0.001	2.766(1.706–4.482)
Node stage
pN0	113
pN1	7
pNX	144	0.290	0.889(0.715–1.105)	—	—
Metastasis stage
pM0	196
pM1	46
pMX	20	<0.001	1.809(1.382–2.368)	<0.001	1.916(1.414–2.597)
Fuhrman grade
< = G2	112
> = G3	148
GX	2	<0.001	3.031(1.874–4.900)	0.001	2.589(1.464–4.580)
CA9 methylation level
Low	132
High	132	0.020	1.704(1.089–2.665)	0.238	1.322(0.831–2.103)

Abbreviation: No., Number.