| CI | Confidence interval |
| HR | Hazard ratio |
| ICI | Immune checkpoint inhibitor therapy |
| Metachronous metastasis | Metastases occurring beyond 3 months after primary diagnosis |
| Synchronous metastasis | Metastases occurring within 3 months after primary diagnosis |
| TT | Targeted therapy |
| UICC | Union internationale contre le cancer |
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