Variable   HR [95%CI]   p value NEP 0.230 [0.073-0.723] 0.012 ET-1 0.761 [0.259-2.237] 0.620 Gleason score 1.818 [0.816-4.048] 0.143 pathologic TNM stage 2.784 [1.241-6.246] 0.013 HR: hazard ratio; CI: confidence interval.

Table 2: Multivariate Cox regression analysis