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Multivariate analysis for OS and PFS.
| Overall Survival (OS) | P value |
| Tumour control (SD, CR, PR) | 0.007 |
| Brain progression (PD) | |
| KPS <70 | 0.024 |
| KPS ≥ 70 | |
| Age ≤ 65 years | 0.792 |
| Age > 65 years | |
| RPA 1 | 0.004 |
| RPA 2 | |
| RPA 3 | |
| Progression Free Survival (PFS) | P value |
| Tumor control (SD, CR, PR) | 0.001 |
| Brain progression (PD) | |
| KPS <70 | 0.05 |
| KPS ≥ 70 | |
| No extracranial disease | 0.810 |
| Extracranial disease | |
| Age > 65 years | 0.310 |
| Age ≤ 65 years | |
| RPA 1 | 0.001 |
| RPA 2 | |
| RPA 3 | |
