Table 1: Patient characteristics, preoperative and postoperative tumor characteristics, and details of surgery in the study population—robotic-assisted prostatectomy versus retropubic prostatectomy.

VariableRRP ( )RALP ( ) value

Patient characteristics

Age (yrs) (median (IQR))66 (60–70)67 (61–71)0.3030
Body mass index (median (IQR))26.28 (24.42–28.41)26.37 (24.02–28.41)0.8551
Prostate weight (g) (median (IQR))52.4 (42.0–66.0)55.0 (44.3–67.5)0.5991
ICSmaleSF incontinence score (median (IQR))0 (0-1)1 (0–2)0.2038

Preoperative tumor characteristics

PSA (ng/mL) (median (IQR))7.60 (5.74–11.97)6.61 (4.90–9.90)0.0247
Clinical stage ( (%))
 T170 (66.7)62 (59.0)
 T225 (23.8)36 (34.3)
 T310 (9.5)2 (1.9) 0.0214
 Missing data05 (4.8)
Biopsy Gleason score ( (%))
 5-656 (53.3)61 (58.1)
 730 (28.6)36 (34.3)
 8–1019 (18.1)8 (7.6) 0.0728
 Missing data00

Postoperative tumor characteristics

Pathological stage ( (%))
 T264 (60.9)65 (61.9)
 T3a27 (25.7)27 (25.7)
 T3b6 (5.7)10 (9.5)0.0923
 T48 (7.6)1 (0.9)
 Missing data02 (1.9)
Prostatectomy Gleason score ( (%))
 5-639 (37.1)39 (37.1)
 7a33 (31.4)46 (43.8)
 7b14 (13.3)9 (8.6)0.1109
 8–1019 (18.1)10 (9.5)
 Missing data01 (0.9)
Lymph node metastasis ( (%))
 N0/X91 (86.7)96 (91.4)
 N113 (12.4)9 (8.6)0.3772
 Missing data1 (0.9)0
Surgical margin status ( (%))
 R074 (70.5)83 (79.0)
 R130 (28.6)21 (20.0)0.1970
 Missing data1 (0.9)1 (0.9)

Details of surgery

Nerve sparing surgery ( (%))
 Yes89 (84.8)86 (81.9)
 No14 (13.3)18 (17.1)0.5648
 Missing data2 (1.9)1 (0.9)
Pelvic lymphadenectomy ( (%))
 Yes87 (82.8)68 (64.8)
 No12 (11.4)37 (35.2)<0.001
 Missing data6 (5.7)0

IQR: interquartile range; PSA: prostate-specific antigen; RALP: robotic-assisted laparoscopic prostatectomy; RRP: radical retropubic prostatectomy.