TABLE 1.
Characteristics of the patients in the 2 groups*
| Characteristic | Group 1 (patients who survived) |
Group 2 (patients who died) |
p Value |
|---|---|---|---|
| no. of patients | 96 | 93 | |
| mean age (yrs) | 33.3 ± 12.8 | 40.3 ± 16.97 | 0.002 |
| sex (M/F) | 78/18 | 79/14 | 0.629 |
| mechanism of injury | 0.098 | ||
| MVA | 48 | 29 | |
| auto vs pedestrian | 20 | 22 | |
| assault | 8 | 10 | |
| fall | 11 | 19 | |
| unknown | 9 | 13 | |
| no. of patients w/ hypotension on presentation | 17 | 24 | 0.240 |
| alcohol | 0.558 | ||
| positive | 29 | 25 | |
| negative | 40 | 31 | |
| unknown | 27 | 37 | |
| op | 49 | 61 | 0.006 |
| mean ICP on presentation (mm Hg) | 16.3 ± 11.1 | 25.7 ± 12.7 | <0.001 |
| mean ISS | 30.19 ± 9.24 | 29.47 ± 7.81 | 0.562 |
| no. of patients w/ ≥1 other organ w/ serious injury (AIS score ≥3) | 27 | 24 | 0.845 |
| pupil size & reactivity | <0.001 | ||
| bilat reactive | 39 | 12 | |
| unilat fixed, dilated | 20 | 9 | |
| bilat fixed not dilated | 23 | 17 | |
| bilat fixed, dilated | 14 | 55 |
*
Values represent the number of patients, unless stated otherwise. Mean values are presented as ± SD. Abbreviation: ISS = Injury Severity Score.