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Statistical significance of the main risk factors for developing meningioma
| Risk Factor | Meningioma | No Meningioma | p-Value |
|---|---|---|---|
| Age at diagnosis (years) | |||
| Mean | 3.8 | 5.3 | 0.176 |
| Median | 3.7 | 4.5 | |
| Range | 1.5–8.6 | 0.8–15.0 | |
| Gender (F/M) | 8/3 | 22/16 | 0.492 |
| Time since cranial irradiation (years) | |||
| Mean | 25.0 | 18.7 | 0.01 |
| Median | 26.0 | 15.6 | |
| Range | 13.9–33.8 | 9.5–32.0 | |
| Relapse (%) | 3 (6%) | 9 (18%) | 0.807 |
| Maintenance (years) | 3.2 | 2.8 | 0.473 |
| Dose (Gy) | 0.017 | ||
| 18 | 0 | 13 | |
| 21–25 | 10 | 20 | |
| 30–46 | 1 | 5 | |
