Table 1.
Demographic Characteristics of 186 patients with Traumatic Brain Injury
| Mean ± SE or number (%) | Median (range) | |
|---|---|---|
| Total number of patients | 186 | |
| Age (y) | 34.0 ± 1.0 | 33 (15–73) |
| Gender | ||
| Male | 165 (88.7%) | |
| Female | 21 (11.3%) | |
| GCS score in the emergency department | 6.1 ± 0.2 | 6 (3–14) |
| AIS score | 27.9 ± 0.5 | 25 (9–50) |
| Prehospital hypoxia | ||
| Unknown | 2 (1.1%) | |
| No | 127 (68.3%) | |
| Yes | 57 (30.6%) | |
| Prehospital hypotension | ||
| Unknown | 2 (1.1%) | |
| No | 164 (88.2%) | |
| Yes | 20 (10.7%) | |
| Emergency department CT scan codea | ||
| Diffuse injury 1 or 2 | 60 (32.2%) | |
| Diffuse injury 3 or 4 | 29 (15.6%) | |
| Mass lesion | 97 (52.2%) | |
a
Score based on the CT categories of Marshall and associates (Marshall et al., 1991).
SE, standard error; GCS, Glasgow Coma Scale; AIS, Abbreviated Injury Scale; CT, computed tomography.