Median OS and 18-month OSR for the risk groups of Bellmunt stratification and the model developed in this study
| This study | Bellmunt | |||||
| Risk factors, n | n | Risk factors, n | n | |||
| Median OS (95% CI) | 0–1 | 271 | 18.6 (18 to NR) | 0 | 257 | 18 (14.2 to NR) |
| 2 | 215 | 10.4 (8.2 to 13.9) | 1 | 339 | 9 (7.8 to 11.2) | |
| 3–4 | 304 | 4.8 (4 to 6.1) | 2 | 201 | 3.5 (2.9 to 4.4) | |
| 5–7 | 98 | 2.1 (1.5 to 2.6) | 3 | 31 | 2.2 (1.2 to 2.8) | |
| 18-month OSR (95% CI) | 0–1 | 271 | 52 (36.2 to 65.6) | 0 | 257 | 49.2 (36.7 to 60.5) |
| 2 | 215 | 39.9 (31.7 to 47.9) | 1 | 339 | 37.3 (31 to 43.7) | |
| 3–4 | 304 | 21 (15.3 to 27.4) | 2 | 201 | 13.2 (7.9 to 20.1) | |
| 5–7 | 98 | 4.5 (1.1 to 11.8) | 3 | 31 | NR | |
NR, not reached; OS, overall survival; OSR, overall survival rates.