Study population demographics
| N (%) or median (IQR) | |
| Gender | |
| Male | 24 (60.0) |
| Female | 16 (40.0) |
| Age | |
| Total | 45 (23–63) |
| Male | 34 (22–62) |
| Female | 50 (33–66) |
| Mechanism of injury | |
| Road traffic collision | 22 (55.0) |
| Fall from height | 17 (42.5) |
| Crush injury | 1 (2.5) |
| Injury Severity Score | |
| ISS >15 | 39 (97.5) |
| ISS >25 | 33 (82.5) |
| ‘Head’ Abbreviated Injury Severity | |
| Serious TBI (AIS 3) | 8 (20.0) |
| Severe TBI (AIS 4) | 8 (20.0) |
| Critical TBI (AIS 5) | 24 (60.0) |
| Prehospital PaCO2 measurement | |
| Yes | 7 (17.5) |
| No | 33 (82.5) |
| Patient outcome at 30 days | |
| Alive | 28 (70.0) |
| Dead | 12 (30.0) |
| Glasgow Outcome Score ≤3 | 24 (60.0) |
| Glasgow Outcome Score ≥4 | 16 (40.0) |
AIS, Abbreviated Injury Scale score; ISS, Injury Severity Score; PaCO2, partial pressure of arterial carbon dioxide; TBI, traumatic brain injury.