Table 1.
Patient characteristics
| Variables | CS (n = 560) | TPS (n = 89) | P values* | |
|---|---|---|---|---|
| Mean age | Years (range) | 73.1 (31–100) | 73.5 (26–93) | 0.39 |
| Sex | ||||
| Male | No. (%) | 487 (87.0) | 77 (86.5) | 0.91 |
| Female | No. (%) | 73 (13.0) | 12 (13.5) | |
| Prior recurrence status | ||||
| Primary | No. (%) | 339 (60.5) | 68 (76.4) | < 0.01 |
| Recurrent | No. (%) | 221 (39.5) | 21 (23.6) | |
| Prior TUR within 90 days | ||||
| Yes | No. (%) | 82 (14.6) | 27 (30.3) | < 0.01 |
| No | No. (%) | 478 (85.4) | 62 (69.7) | |
| Tumor appearance | ||||
| Papillary | No. (%) | 478 (85.4) | 78 (87.6) | 0.57 |
| Solid | No. (%) | 82 (14.6) | 11 (12.4) | |
| Tumor number | ||||
| Solitary | No. (%) | 389 (69.5) | 58 (65.1) | 0.42 |
| Multiple | No. (%) | 171 (30.5) | 31 (34.9) | |
| Largest tumor diameter | ||||
| < 3 cm | No. (%) | 532 (95.0) | 80 (89.9) | 0.05 |
| ≥ 3 cm | No. (%) | 28 (5.0) | 9 (10.1) | |
| High-grade tumor | ||||
| Yes | No. (%) | 313 (55.9) | 42 (47.2) | 0.13 |
| No | No. (%) | 247 (44.1) | 47 (52.8) | |
| Pathological tumor stage (Benign vs pT+) | ||||
| Benign | No. (%) | 108 (19.2) | 25 (28.1) | 0.06 |
| pTis | No. (%) | 49 (8.8) | 8 (9.0) | |
| pTa | No. (%) | 243 (43.4) | 31 (34.8) | |
| pT1 | No. (%) | 117 (20.9) | 16 (18.0) | |
| ≥ pT2 | No. (%) | 43 (7.7) | 9 (10.1) | |
| Concomitant CIS | ||||
| Yes | No. (%) | 120 (21.4) | 18 (20.2) | 0.79 |
| No | No. (%) | 440 (78.6) | 71 (79.8) | |
CS conventional systems, TPS The Paris System, TUR transurethral resection, CIS carcinoma in situ
*P values were estimated using using the Mann–Whitney U test or the Fisher’s exact test