Table 4.
Univariate analysis for overall survival.
| Characteristics | sHR | 95% CI | P value |
|---|---|---|---|
| Age (>65) | 1.96 | 0.60–6.39 | 0.3 |
| Sex | |||
| Male | 1.05 | 0.36–3.06 | 0.9 |
| KPS (>80) | 0.21 | 0.04–1.09 | 0.06 |
| Extra-cranial metastases | 1.97 | 067–5.81 | 0.2 |
| Number of intracranial metastases | |||
| >1 brain metastasis | 1.06 | 0.77–1.44 | 0.7 |
| Histology | |||
| NSCLC | 1.38 | 0.45–4.23 | 0.6 |
| Melanoma | 1.71 | 0.57–5.15 | 0.3 |
| Cavity volume (>20 cc) | 1.02 | 0.98–1.06 | 0.3 |
| PTV volume (>50 cc) | 1.01 | 1.00–1.03 | 0.02 |
| PTV/cavity volume (>0.4) | 0.03 | 0.00–2.09 | 0.1 |
| CI (>1.0) | 2.39 | 0.58–9.83 | 0.2 |