Aetiologies of episodes of probable severe ABI requiring rehabilitation by gender (1 April 2003 to 31 March 2012)
| Males | Females | |||
| n | % | n | % | |
| Trauma | 996 | (37.0) | 367 | (20.2) |
| Brain tumour | 473 | (17.6) | 393 | (21.7) |
| Anoxia | 419 | (15.6) | 407 | (22.4) |
| Meningitis | 353 | (13.1) | 249 | (13.7) |
| Vascular insults | 203 | (7.5) | 154 | (8.5) |
| Encephalitis | 116 | (4.3) | 125 | (6.9) |
| Metabolic encephalopathy | 28 | (1.0) | 30 | (1.7) |
| Other brain injury | 22 | (0.8) | 26 | (1.4) |
| Toxicity | 84 | (3.1) | 63 | (3.5) |
| Total | 2694 | 1814 | ||