Table 3.
Significant multivariate predictors of survival, all patients
| Characteristic | Hazard ratioa | 95% Confidence interval | P value |
|---|---|---|---|
| Age, y | |||
| ≥55 | 1.40 | 1.11–1.77 | 0.004 |
| <55b | 1.00 | — | — |
| Evidence of systemic disease | |||
| Yes | 1.52 | 1.18–1.96 | 0.001 |
| Nob | 1.00 | — | — |
| Relative tumor radiosensitivity | |||
| Resistant | 1.33 | 1.04–1.69 | 0.02 |
| Sensitiveb | 1.00 | — | — |
| Interval from primary diagnosis to brain tumor diagnosis, months | |||
| <6 | 1.37 | 1.03–1.85 | 0.033 |
| ≥6b | 1.00 | — | — |
| Brain tumor location | |||
| Infratentorial | 1.49 | 1.10–2.00 | 0.009 |
| Supratentorialb | 1.00 | — | — |
| Brain tumor maximal diameter, pre-op, cm | |||
| >3 | 1.37 | 1.04–1.80 | 0.026 |
| ≤3b | 1.00 | — | — |
aHazard ratio refers to the risk of death from any cause per unit time.
bReferent (ie, group others are compared with).