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 | Â | Â | 0.029 |
 < 70 | 32 (65.3) | 31 (44.9) |  |
 ≥70 | 17 (34.7) | 38 (55.1) |  |
Gender | Â | Â | 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 | Â | Â | 0.617 |
 1 | 8 (16.3) | 9 (13.0) |  |
 ≥2 | 41 (83.7) | 60 (87.0) |  |
Clinical stage at latest TUR-BT | Â | 0.609 | |
 ≤T1 | 19 (38.8) | 30 (43.5) |  |
 ≥T2 | 30 (61.2) | 39 (56.5) |  |
Presence of CIS at last TUR-BT | Â | 0.221 | |
 No | 47 (95.9) | 62 (89.9) |  |
 Yes | 2 (4.1) | 7 (10.1) |  |
BCG instillation history | Â | Â | 0.678 |
 No | 45 (91.8) | 60 (89.6) |  |
 Yes | 4 (8.2) | 7 (10.4) |  |
Neoadjuvant chemotherapy | Â | 0.92 | |
 No | 40 (81.6) | 56 (82.4) |  |
 Yes | 9 (18.4) | 12 (17.6) |  |