TABLE 2.

Multivariate analyses for the prediction of biochemical recurrence-free survival by Cox proportional hazard regression models

CI, confidence interval; PSA, prostate-specific antigen; PSM, positive surgical margin.

^a:Age, preoperative PSA, and prostate weight are continuous variables. ^b:Pathological T stage, pathological Gleason score, and surgical margin are categorical variables (referent categories : pT2, ≤7, and negative finding, respectively). ^c:(A/B): A is the number of patients without biochemical recurrence and B is the number of patients with biochemical recurrence.