Table 3.
Sub-Analysis: Number of Metastases.
| Model | C-Index (95% CI) |
|---|---|
| < 5 Metastases (n = 543) | |
| Unweighted average | 0.621 (0.583–0.661) |
| Weighted average | 0.617 (0.570–0.651) |
| Weighted average of largest 3 metastases | 0.640 (0.600–0.686) |
| Largest + number of metastases | 0.639 (0.593–0.676) |
| Largest metastasis | 0.619 (0.580–0.653) |
| Smallest metastasis | 0.612 (0.566–0.655) |
| 5–10 Metastases (n = 214) | |
| Unweighted average | 0.697 (0.638–0.762) |
| Weighted average | 0.682 (0.617–0.743) |
| Weighted average of largest 3 metastases | 0.688 (0.635–0.749) |
| Largest + number of metastases | 0.691 (0.634–0.750) |
| Largest metastasis | 0.688 (0.623–0.740) |
| Smallest metastasis | *** |
| 11 + metastases (n = 74) | |
| Unweighted average | 0.876 (0.776–0.964) |
| Weighted average | 0.872 (0.771–0.965) |
| Weighted average of largest 3 metastases | 0.880 (0.787–0.964) |
| Largest + number of metastases | 0.909 (0.803–0.993) |
| Largest metastasis | 0.894 (0.765–0.974) |
| Smallest metastasis | *** |
*** Collinear.