Results of multivariate Cox proportional hazards model
| Covariate | Odds of death (95% CI) | p |
| Type of treatment centre | 0.05 (0.00, 0.45) | 0.008 |
| (specialty compared to non-specialty) | ||
| Age at diagnosis (per year) | 0.84 (0.78, 0.90) | <0.001 |
| Intracranial meningiomas (per tumour) | 1.27 (1.06, 1.51) | 0.008 |
Age at diagnosis was used instead of age at onset because tumour burden was usually evaluated at diagnosis.