TABLE 1. Demographic and Injury Severity Characteristics of 405 Patients With PbtO2 Monitoring and Long-term Neurological Outcomea.
| Variable | Mean ± SD or n (%) |
|---|---|
| Age, y | 34.2 ± 14.1 |
| Sex | |
| Male | 327 (80.7) |
| Female | 78 (19.3) |
| Race | |
| White | 112 (27.6) |
| Black | 98 (24.2) |
| Hispanic | 186 (45.9) |
| Asian | 9 (2.2) |
| Mechanism of injury | |
| Motor vehicle collision | 268 (66.2) |
| Fall/jump | 58 (14.3) |
| Assault | 41 (10.1) |
| Other | 21 (5.2) |
| Unknown | 17 (4.2) |
| Motor GCS | |
| 1-3 | 188 (46.4) |
| 4-6 | 215 (53.1) |
| Untestable | 2 (0.5) |
| Pupils | |
| Both reactive | 236 (58.3) |
| 1 Unreactive | 43 (10.6) |
| Both unreactive | 105 (25.9) |
| Untestable | 19 (4.7) |
| Injury Severity Score | 30.5 ± 8.0 |
| Apache II Score | 20.8 ± 6.6 |
| Prehospital hypotension | |
| Yes | 52 (12.8) |
| No | 353 (87.2) |
| Prehospital hypoxia | |
| Yes | 119 (29.4) |
| No | 286 (70.6) |
| Type of injury (Marshall CT category) | |
| Diffuse injury 1 or 2 | 135 (33.3) |
| Diffuse injury 3 or 4 | 87 (21.5) |
| Mass lesion | 183 (45.2) |
| Glasgow Outcome Scale | |
| Good recovery | 62 (15.3) |
| Moderate disability | 67 (16.5) |
| Severe disability | 162 (40.0) |
| Vegetative | 28 (6.9) |
| Dead | 86 (21.2) |
a
CT, computed tomography; GCS, Glasgow Coma Scale.