Table 3.
Prognostic factors.
| Variable | Statistical analysis | |||
|---|---|---|---|---|
| Log-rank | Multivariate Cox regression | |||
| p value | p value | Coefficient (Coeff.) | 95% Confidence interval (CI) | |
| Survival | ||||
| Age | 0.0000 | 0.038 | 0.0338118 | 0.0018982–0.0657254 |
| Prior surgery | 0.0486 | 0.053 | 0.6203678 | −1.24931–0.0085739 |
| Prior WBRT | 0.0097 | 0.014 | 1.104396 | 0.2219025–1.986891 |
| RPA | 0.0000 | 0.000 | 2.153972 | 1.108619–3.199326 |
| KPS (≥70 versus <70) | 0.0000 | 0.000 | 2.072708 | 0.9231157–3.222301 |
| SIR (≥6 versus <6) | 0.0093 | 0.011 | 2.155395 | 0.1726184–1.36333 |
| BSBM | 0.0027 | 0.003 | −0.8503598 | −1.402409–−0.2983109 |
| Number of brain metastases (>3 versus ≤3) | 0.0009 | 0.002 | 1.260513 | 0.462241–2.058785 |
| Ds-GPA | 0.0002 | 0.000 | 0.5929137 | −0.7985645–−0.2468485 |
| Initial tumor volume | 0.0000 | 0.651 | 0.008675 | −0.0289586–0.0463086 |
|
| ||||
| Local control | ||||
| Tumor volume | 0.0000 | 0.668 | −0.0242895 | −0.1353437–0.0867646 |
|
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| Distant brain progression-free survival | ||||
| Prior WBRT | 0.0072 | 0.014 | 1.252507 | 0.2539636–2.25105 |