Table 1 Demographic characteristics and preoperative clinical features of the two groups of patients
From: A comparison of the da Vinci Xi vs. da Vinci Si surgical systems for radical prostatectomy
Variables | Xi (n = 82) | Si (n = 93) | p value |
|---|---|---|---|
Age, median (range), year | 67.2 (50, 82) | 68.1 (51, 85) | 0.415 |
BMI, median (range), kg/m2 | 22.6 (18.6, 29) | 22.1 (19, 29) | 0.075 |
Diabetes mellitus, n (%) | 8 (9.8) | 11 (11.8) | 0.809 |
Hypertension, n (%) | 29 (35.4) | 42 (42.5) | 0.218 |
History of abdominal or pelvic surgery, n (%) | 15 (18.3) | 20 (21.5) | 0.706 |
ASA score < 3, n (%) | 72 (87.8) | 81 (87.1) | 1.000 |
ASA score ≥ 3, n (%) | 10 (12.2) | 12 (12.9) | 1.000 |
Preoperative PSA, mean (SD), ng/ml | 59.6 (85.6) | 47.6 (82) | 0.347 |
Prostate volume, mean (SD), ml | 36.4 (18.8) | 35.4 (18.5) | 0.734 |
Biopsy Gleason score, n (%) | |||
≤ 6 | 9 (11) | 12 (12.9) | 0.817 |
= 7 | 28 (34.1) | 26 (28) | 0.415 |
≥ 8 | 45 (54.9) | 54 (58.1) | 0.760 |
Clinical T stage, n (%) | |||
cT2a | 15 (18.3) | 21 (22.6) | 0.575 |
cT2b | 52 (63.4) | 45 (48.4) | 0.490 |
cT2c | 10 (12.2) | 17 (17.2) | 0.399 |
cT3a | 5 (6.1) | 11 (11.8) | 0.293 |
D’Amico risk classification, n (%) | |||
Low | 1 (1.2) | 1 (1.1) | 1.000 |
Intermediate | 21 (25.6) | 17 (18.3) | 0.273 |
High | 60 (73.2) | 75 (80.6) | 0.281 |