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Table 2 Comparison of patients with and without biochemical recurrence

From: Risk of biochemical recurrence based on extent and location of positive surgical margins after robot-assisted laparoscopic radical prostatectomy

  Recurrence-free n = 315 Biochemical Recurrence n = 138
Preoperative data
Age – median (IQR) 63.0 (58.0–68.0) 64.0 (59.0–69.0)
Preoperative PSA – median (IQR) 6.0 (4.5–8.0) 8.0 (5.9–10.9)
Pathological results
Pathological Gleason Score
 ≤6 150 (48%) 21 (15%)
 3 + 4 113 (36%) 46 (33%)
 4 + 3 33 (10%) 31 (22%)
 > 8 19 (6%) 36 (26%)
 unknown 0 (0%) 3 (2%)
pT stage
 pT2 259 (82%) 62 (45%)
 pT3a 40 (13%) 35 (25%)
 pT3b 16 (5%) 36 (26%)
 pT4 0 (0%) 2 (1%)
 unkwon 0 (0%) 3 (2%)
 Involvment of lymph nodes 2 (1%) 10 (7%)
Positive surgical margins
 Apical   
 focal 29 (9%) 14 (10%)
 extensive 6 (2%) 13 (9%)
Posterolateral
 focal 18 (6%) 21 (15%)
 extensive 7 (2%) 11 (8%)
Base
 focal 11 (3%) 11 (8%)
 extensive 4 (1%) 3 (2%)
Bladder neck
 focal 1 (0%) 1 (1%)
 extensive 0 (0%) 0 (0%)