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Table 3 Univariate and multivariate proportional hazard analyses of PSA relapse (n = 908)

From: Robot-assisted radical prostatectomy significantly reduced biochemical recurrence compared to retro pubic radical prostatectomy

  Univariate Multivariate
Variable Hazard ratio 95% index p value Hazard ratio 95% index p value
Serum PSA (ng/mL) (≥7.8 vs. <7.8) 1.7 1.2–2.3 0.001 1.6 1.2–2.2 0.005
Gleason score (≥ 8vs. ≤7) 2.0 1.4–2.9 0.007 - - -
Extra prostatic extension (1 vs. 0) 2.4 1.7–3.3 <0.0001 - - -
Lymphovascular invasion (1 vs. 0) 1.6 1.1–2.2 0.009 1.4 0.9–2.0 0.06
Perineural invasion (1 vs. 0) 2.0 1.4–2.8 <0.0001 1.8 1.3–2.7 0.001
Resection margin (1 vs. 0) 3.0 2.2–4.1 <0.0001 - - -
Lymph node metastasis (1 vs.0) 3.5 1.1–8.2 0.004 - - -
RARP vs RRP 0.7 0.4–0.9 0.04 0.6 0.4–0.9 0.009