Table 1.
Gender, age and trauma mechanism
| TBI + injury | TBI isolated | Total | P value | ||||
|---|---|---|---|---|---|---|---|
| n | % mort | n | % mort | n | % mort | ||
| Patients | 364 | 27.2 | 403 | 30.0 | 767 | 28.7 | 0.42 |
| Female | 85 | 27.1 | 117 | 33.3 | 202 | 30.7 | – |
| Male | 279 | 27.2 | 286 | 28.7 | 565 | 28.0 | – |
| % female | 23 | 29 | 26 | ||||
| Age | Mean | SD | Mean | SD | Mean | SD | |
| Females | 45.9 | 23.3 | 60.8 | 22.4 | 54.5 | 23.9 | – |
| Males | 43.0 | 20.4 | 49.5 | 21.4 | 46.3 | 21.1 | – |
| All patients | 43.6 | 21.1 | 52.8 | 22.2 | 48.5 | 22.2 | – |
| Trauma mechanism | n | % mort | n | % mort | n | % mort | |
| Fall < 3 m | 52 | 36.5 | 180 | 41.7 | 232 | 40.5 | 0.52 |
| Fall > 3 m | 56 | 32.1 | 23 | 17.4 | 79 | 27.8 | 0.27 |
| Traffic-related | 197 | 23.9 | 99 | 21.2 | 296 | 23.0 | 0.66 |
| Sports-related | 25 | 12.0 | 33 | 9.1 | 58 | 10.3 | 0.99 |
| Work-related/no falls | 7 | 28.6 | 11 | 18.2 | 18 | 22.2 | 0.99 |
| Violence | 3 | 33.3 | 14 | 35.7 | 17 | 35.3 | 0.99 |
| Other | 19 | 31.6 | 21 | 23.8 | 40 | 27.5 | 0.73 |
| Unknown | 5 | 60.0 | 22 | 27.3 | 27 | 33.3 | 0.30 |
| Total | 364 | 27.2 | 403 | 30.0 | 767 | 28.7 | 0.42 |
| Type of trauma | |||||||
| Blunt | 327 | 28.1 | 375 | 29.9 | 702 | 29.1 | 0.62 |
| Penetrating | 27 | 18.5 | 18 | 44.4 | 45 | 28.9 | 0.09 |
| Unknown | 10 | 20.0 | 10 | 10.0 | 20 | 15.0 | 0.99 |
| Total | 364 | 27.2 | 403 | 30.0 | 767 | 28.7 | 0.42 |
The P value relates to the mortality difference between patients with isolated TBI and patients with concomitant injuries
TBI traumatic brain injury