Table 2. Baseline characteristics of hemodynamically unstable patients with and without TBI*.
| Severe traumatic brain injury | ||||||
|---|---|---|---|---|---|---|
| Present (n = 22) | Absent (n = 41) | p-value | ||||
| n | value | n | value | |||
| Age | 22 | 49.4±20.2 | 41 | 49.5±22.2 | 0.99 | |
| Age <45 | 11 (50.0%) | 19 (46.3%) | 0.80 | |||
| Sex | Male | 16 (72.7%) | 32 (78.0%) | 0.76 | ||
| Type of trauma | Blunt | 22 (100.0%) | 38 (92.7%) | 0.55 | ||
| Prehospital Trauma Index | 18 | 7.6±3.3 | 28 | 3.1±3.0 | <0.01 | |
| Injury Severity Score | 22 | 26.9±14.2 | 41 | 18.9±10.1 | 0.01 | |
| Glasgow Coma Scale | 22 | 5.1±1.8 | 41 | 13.6±1.9 | <0.01 | |
| Lowest MAP | 22 | 56.7±11.4 | 41 | 59.0±15.4 | 0.54 | |
| TBI confirmed on CT | 18 (81.8%) | - | - | |||
| Intoxication** | 9 (40.9%) | 9 (22.0%) | 0.15 | |||
| Past medical history | Hypertension | 6 (27.3%) | 12 (29.3%) | |||
| Chronic renal failure | 1 (4.5%) | 3 (7.3%) | ||||
| Coronary artery disease | 4 (18.2%) | 5 (12.2%) | ||||
| Peripheral vascular disease | 1 (4.5%) | 2 (4.9%) | ||||
| Congestive heart failure | 0 (0.0%) | 0 (0.0%) | ||||
| Diabetes | 4 (18.2%) | 6 (14.6%) | ||||
| Transfer from primary or secondary referring hospital | 6 (27.3%) | 14 (34.1%) | 0.77 | |||
Categorical variables are presented as count (%), continuous variables as mean±SD. p-values comparing the hemodynamically unstable patients with and without severe TBI are by Fisher's exact test and by Student's t-test for categorical and continuous variables respectively
*TBI: traumatic brain injury; severe TBI is defined as Glasgow Coma Scale ≤8
**illicit drugs or alcohol