Brim decision tree classification
| Prognostic group | Median survival (IQR), months, derivation cohort | Median survival (IQR), months, validation cohort |
| 1 | 34.0 (22.9–47.0) | N/A |
| 2 | 17.7 (11.6–25.9) | 11.93 (8.53–18.56) |
| 3 | 12.0 (6.0–20.6) | 9.89 (4.84–17.81) |
| 4 | 7.4 (3.3–11.1) | 5.68 (3.12–10.84) |
N/A, not available.