| Number of Patients | 114 |
| Age (years) | 69.2 (40-87) |
| Grade (1: 2: 3:CIS) | 9:74:17:14 |
| Stage (Tis:Ta:T1:CIS) | 2:54:41:17 |
| Tumor number (1:2-3: ≥ 4:CIS:unknown) | 18:34:33:17:12 |
| Number of recurrences ( 0: 1: ≥ 2) | 66:28:20 |
| Observation period (months ) | 102 (38-146) |