The 10-years Kaplan-Meier estimated risk of epilepsy in % (95% CI)
| Type of injury | % (95% CI) |
| Control | 0.9 (0.9 to 0.9) |
| Any injury | 4.0 (3.8 to 4.2) |
| Mild | 2.6 (2.4 to 2.8) |
| Fracture | 2.8 (2.4 to 3.2) |
| Extracerebral injury | 7.3 (6.9 to 7.7) |
| Diffuse cerebral injury | 8.1 (7.5 to 8.7) |
| Focal cerebral injury | 12.9 (11.7 to 14.1) |