Table 1.
Patient demographics and preoperative characteristics
| Parameters | Low De Ritis ratio (< 1.3, N = 49) | High De Ritis ratio (≥1.3, N = 69) | P |
|---|---|---|---|
| Age, y | 0.029 | ||
| < 70 | 32 (65.3) | 31 (44.9) | |
| ≥70 | 17 (34.7) | 38 (55.1) | |
| Gender | 0.032 | ||
| Male | 45 (91.8) | 53 (76.8) | |
| Female | 4 (8.2) | 16 (23.2) | |
| BMI (kg/m2, ±SD) | 22.97 ± 3.28 | 22.16 ± 2.94 | 0.156 |
| ASA classification | 0.617 | ||
| 1 | 8 (16.3) | 9 (13.0) | |
| ≥2 | 41 (83.7) | 60 (87.0) | |
| Clinical stage at latest TUR-BT | 0.609 | ||
| ≤T1 | 19 (38.8) | 30 (43.5) | |
| ≥T2 | 30 (61.2) | 39 (56.5) | |
| Presence of CIS at last TUR-BT | 0.221 | ||
| No | 47 (95.9) | 62 (89.9) | |
| Yes | 2 (4.1) | 7 (10.1) | |
| BCG instillation history | 0.678 | ||
| No | 45 (91.8) | 60 (89.6) | |
| Yes | 4 (8.2) | 7 (10.4) | |
| Neoadjuvant chemotherapy | 0.92 | ||
| No | 40 (81.6) | 56 (82.4) | |
| Yes | 9 (18.4) | 12 (17.6) | |
BMI body mass index, BCG Bacille Calmette-Guerin, ASA American Society of Anesthesiologists, TUR-BT transurethral tumor resection of bladder tumor, CIS carcinoma in situ