Table 1.
Patient and tumor characteristics.
| Characteristics | Minimally invasive RC |
Open RC |
p-Value |
|---|---|---|---|
| n=1 243 | n=855 | ||
| Year of surgery, n (%) | |||
| 2007–2010 | 118 (9.5) | 137 (16.0) | <0.001 |
| 2011–2013 | 290 (23.3) | 306 (35.8) | |
| 2014–2016 | 835 (67.2) | 412 (48.2) | |
| Age, year | 63.4±10.1 | 63.5±10.2 | 0.865 |
| Male, n (%) | 1087 (87.5) | 749 (87.6) | 0.917 |
| BMI, kg/m2 | 22.8±2.4 | 22.9±2.2 | 0.821 |
| ASA score, n (%) | 0.147 | ||
| Ⅰ+Ⅱ | 1079 (86.8) | 713 (83.4) | |
| Ⅲ+Ⅳ | 164 (13.2) | 142 (16.6) | |
| Pathologic stage, n (%) | 0.587 | ||
| <T2 | 346 (27.8) | 244 (28.5) | |
| T2 | 566 (45.5) | 390 (45.6) | |
| T3 | 239 (19.2) | 148 (17.3) | |
| T4 | 92 (7.4) | 73 (8.5) | |
| Pathologic grade, n (%) | |||
| High grade | 1065 (85.7) | 745 (87.1) | 0.341 |
| Low grade | 178 (14.3) | 110 (12.9) | |
| Pathological nodal involvement, n (%) | 193 (15.5) | 120 (14.0) | 0.346 |
RC, radical cystectomy; BMI, body mass index; ASA, the American Society of Anesthesiologists.