| N | Stage | Histological Grade | Size | Cis | Risk of Prog. | Weight |
| 1 | Ta | low | <1.5 cm | absent | <3 years | 0.1 |
| 34 | Ta | low | 1.5 - 3 cm | absent | >3 years | 0.88 |
| 13 | Ta | high | >3 cm | absent | <3 years | 0.47 |
| 42 | T1 | low | 1.5 - 3 cm | absent | >3 years | 0.58 |
| 17 | T1 | low | <1.5 cm | absent | <3 years | 0.4 |
| 25 | T1 | high | <1.5 cm | absent | <3 years | 0.75 |
| 32 | T1 | high | >3 cm | present | >3 years | 0.13 |