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| Factor | Recurrence score | Progression score |
|---|---|---|
| Number of tumors | ||
| Single | 0 | 0 |
| 2-7 | 3 | 3 |
| ≥8 | 6 | 3 |
| Tumor diameter (cm) | ||
| <3 | 0 | 0 |
| ≥3 | 3 | 3 |
| Prior recurrence rate | ||
| Primary | 0 | 0 |
| ≤1 Recurrence/y | 2 | 2 |
| >1 Recurrence/y | 4 | 2 |
| T category: | ||
| Ta | 0 | 0 |
| T1 | 1 | 4 |
| Concurrent CIS | ||
| No | 0 | 0 |
| Yes | 1 | 6 |
| Tumor grade | ||
| 1 | 0 | 0 |
| 2 | 1 | 0 |
| 3 | 2 | 5 |
| Total score | 0-17 | 0-23 |
EORTC, European Organisation for Research and Treatment of Cancer; CIS, carcinoma in situ.
