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Table 1 Preoperative and postoperative characteristics of RRP and LRP patients

From: Comparison of surgical technique (Open vs. Laparoscopic) on pathological and long term functional outcomes following radical prostatectomy

  Surgical technique  
Characteristics RRP LRP Total p-value*
Patients (n) 168 171 339  
Age (yrs)     0.678 MW
 Mean ± SD 62.6 ± 5.4 62.3 ± 5.7 62.5 ± 5.6  
 Median (Range) 64 (43–73) 64 (46–74) 64 (43–76)  
PSA (ng/ml)     0.737 MW
 Mean ± SD 10.1 ± 11.9 9.2 ± 6.9 9.7 ± 9.6  
 Median (Range) 7.4 (0.6-99.0) 7.2 (0.6-50.6) 7.4 (0.6-99.0)  
Clinical stage (%)     0.525
 cT1 94/121 (77.7) 120/167 (71.9) 214/288 (74.3)  
 cT2 25/121 (20.7) 43/167 (25.7) 68/288 (23.6)  
 cT3 2/121 (1.7) 4/167 (2.4) 6/288 (2.1)  
Biopsy Gleason score (%)     0.328
 ≤ 6 78/146 (53.4) 103/167 (61.7) 181/313 (57.8)  
 7 52/146 (35.6) 50/167 (29.9) 1102/313 (32.6)  
 8-9 16/146 (11.0) 14/167 (8.4) 30/313 (9.6)  
Pathology weight (g)     0.024 MW
 Mean ± SD 58 ± 22 53 ± 20 55 ± 21  
 Median (Range) 53 (27–150) 49 (21–173) 50 (21–173)  
Prostatectomy Gleason score (%)     0.533
 ≤ 6 49/161 (30.4) 43/171 (25.1) 92/332 (58.6)  
 7 91/161 (56.5) 106/171 (62.0) 197/332 (59.3)  
 8-9 21/161 (13.0) 22/171 (12.9) 43/332 (13.0)  
Extraprostatic extension 45/161 (28.0) 51/171 (29.8) 96/332 (28.9) 0.798
Seminal vesicle invasion 25/161 (15.5) 10/171 (5.8) 35/332 (10.5) 0.008
Lymph node invasion 14/156 (9.0) 3/64 (4.7) 17/220 (7.7) 0.422
Positive surgical margin 35/158 (22.2) 45/170 (26.5) 80/328 (24.4) 0.435
pT2 R1 13 (10.5) 21 (17.5) 34 (13.9) 0.006
Nerve sparing (%)     <0.001
 None 25/168 (14.9) 92/171 (53.8) 117/339 (34.5)  
 Unilaterally 3/168 (1.8) 39/171 (22.8) 42/339 (12.4)  
 Bilaterally 140/168 (83.3) 40/171 (23.4) 180/339 (53.1)  
Time interval to interview (mo)     0.222
 Mean ± SD 24 ± 16 24 ± 12 24 ± 14  
 Median (Range) 17 (9–62) 22 (9–52) 19 (9–62)  
  1. *Indicates test for comparison among the two age cohorts. All tests are chi-squared, unless stated otherwise.
  2. MW: Mann –Whitney-U-Test.
  3. pT2 R1 – organ confined disease with positive surgical margin.