Table 1.
Characteristics of the Severe Traumatic Brain Injury Study Population Stratified for the Primary Outcome Measure (Survivors/Non-Survivors)
| Characteristic* | All patients (n=188) | Survivors (n=122) | Non-survivors (n=66) | p value |
|---|---|---|---|---|
| Age, years | 34.8 (13.9) | 33.4 (12.6) | 37.2 (15.8) | 0.081 |
| Pre-hospital care, n (%) | 124 (66) | 84 (69) | 40 (61) | 0.863 |
| Sex, male, n (%) | 165 (88) | 107 (88) | 58 (88) | 0.462 |
| GCS at hospital admission | 5.7 (2.2) | 6.3 (2.6) | 5.2 (2.0) | <0.001 |
| Systolic blood pressure | 128 (29) | 129 (28) | 126 (33) | 0.552 |
| Diastolic blood pressure | 77 (22) | 77 (23) | 76 (19) | 0.892 |
| Mechanism of injury, n (%) | 0.168 | |||
| Motor vehicle accident | 80 (43) | 55 (45) | 25 (38) | |
| Assault | 41 (22) | 24 (20) | 17 (26) | |
| Auto pedestrian | 40 (21) | 28 (23) | 12 (18) | |
| Fall | 27 (14) | 15 (12) | 12 (18) | |
| Craniotomy, n (%) | 104 (55) | 63 (52) | 41 (62) | 0.236 |
| Associated injuries, n (%) | 110 (59) | 77 (63) | 33 (50) | 0.090 |
| Mortality, n (%) | 66 (35) | - | 66 (100) | |
| Time between trauma and outcome, days | 11.9 (10.8) | 15.5 (11.5) | 5.0 (3.9) | <0.001 |
| GCS at discharge from ICU | 11.1 (3.4) | 11.1 (3.4) | - |
*
Data are shown as mean (standard deviation) or, when indicated, number (%) of patients.
GCS, Glasgow coma scale; ICU, intensive care unit.