Table 1 Descriptive statistics of the study population
Variables | Complete study | Robot-assisted laparoscopic radical Prostatectomy | Conventional laparoscopic radical Prostatectomy | Open retropubic radical prostatectomy | P-value |
|---|---|---|---|---|---|
Number of cases (share of total sample) | 8’593 (100%) | 3’032 (35.3%) | 3’181 (37.0%) | 2’380 (27.7%) | - |
Cases with supplementary insurance (share per surgical procedure) | 3’448 (40.1%) | 1’206 (39.8%) | 1’525 (47.9%) | 717 (30.1%) | < 0.001 |
Cases with Swiss citizenship (proportion per surgical procedure) | 7’569 (88.1%) | 2’631 (86.8%) | 2’780 (87.4%) | 2’158 (90.7%) | < 0.001 |
Average age (standard deviation per surgical procedure) | 65.6 (6.8) | 65.0 (6.7) | 65.4 (6.8) | 66.6 (6.8) | < 0.001 |
Average length of stay (standard deviation per surgical procedure) | 6.7 (3.6) | 6.0 (3.9) | 6.2 (3.0) | 8.2 (3.3) | < 0.001 |
Average Elixhauser Comorbidity Measure (standard deviation per surgical procedure) | 0.90 (5.8) | 1.35 (5.99) | 0.23 (5.10) | 1.22 (6.4) | < 0.001 |
Reentry due to complication (proportion per surgical procedure) | 35 (0.4%) | 10 (0.3%) | 15 (0.5%) | 10 (0.4%) | 0.676 |
Cases died during hospitalisation (proportion per surgical procedure) | 2 (0.02%) | 1 (0.07%) | 0 | 1 (0.08%) | 0.681 |
Cases with regional lymphadenectomy as a secondary treatment | 5’329 (62.0%) | 1’899 (62.6%) | 1’969 (61.9%) | 1’461 (61.4%) | 0.614 |
Number of cases with at least one of the 25 most frequent procedure-related complications (proportion per surgical procedure) | 998 (11.6%) | 306 (10.1%) | 285 (9.0%) | 407 (17.1%) | < 0.001 |
Cases with other complication (share per surgical procedure) | 280 (3.3%) | 94 (3.1%) | 95 (3.0%) | 91 (3.8%) | 0.183 |