Table 2.

Multivariate Cox regression analysis of overall survival (OS) and Recurrence-free survival (RFS) in patients with bladder cancer

Prognostic variables	OS		RFS
	Hazard ratio (95% CI)	P	Hazard ratio (95% CI)	P
Age (>45 vs ≤45)	1.117 (0.294-4.237)	0.981	1.248 (0.430-3.619)	0.683
Differentiation (Grade 3 vs 1/2)	1.019 (0.214-4.859)	0.871	1.133 (0.487-2.634)	0.772
SKIP (+ vs -)	6.338 (1.333-30.131)	0.020*	2.697 (1.161-6.264)	0.021*

Statistical analyses were performed by the Cox regression analysis

^*P<0.05 was considered significant;

Prognostic role of SKIP in bladder cancer.