Down-regulation of the pro-apoptotic XIAP associated factor-1 (XAF1) during progression of clear-cell renal cancer

Table 2 Univariate survival analysis (Kaplan-Meier) and log rank test

Characteristic		No. of cases	No. of events	Two-year survival rate (± SE) in %	p-value
XAF1 expression		291	103
	Low	152	66	71.8 ± 3.7	0.018
	High	139	37	84.7 ± 3.1
PT-Status					< 0.001
	pT1/2	145	28	92.3 ± 2.2
	pT3/4	146	75	63.7 ± 4.0
Fuhrman grade					< 0.001
	G 1/2	129	25	88.1 ± 2.9
	G 3/4	162	78	69.4 ± 3.7
Metastases					< 0.001
	M0/x	241	68	84.8 ± 2.3
	M1	50	35	43.7 ± 7.3

Survival times of patients with clear-cell RCC according to clinico-pathological characteristics and nuclear XAF1 protein expression levels.