Table 3. Multivariate Analysis for Outcome Death for the Overall Study Sample and for Prespecified Subgroupsa.
| Outcome | No. | Adjusted relative risk (95% CI) | P value | |
|---|---|---|---|---|
| RT | REBOA zone 1 | |||
| Overall sample | 685 | 306 | 1.25 (1.15-1.36) | <.001 |
| Required CPR on arrival | ||||
| Yes | 355 | 94 | 1.05 (0.80-1.37) | .72 |
| No | 329 | 212 | 1.43 (1.22-1.68) | <.001 |
| Traumatic brain injury | ||||
| Yes | 93 | 118 | 1.04 (0.98-1.10) | .19 |
| No | 592 | 188 | 1.35 (1.11-1.64) | .003 |
| Chest injury | ||||
| Severe | 403 | 174 | 1.30 (1.16-1.45) | <.001 |
| Penetrating | 289 | 19 | 1.49 (1.16-1.91) | .002 |
| Isolated severe | 234 | 38 | 1.34 (1.01-1.77) | .04 |
| No severe | 282 | 132 | 1.14 (0.86-1.52) | .37 |
| Pelvic injury | ||||
| Severe | 5 | 9 | NA | |
| No severe | 676 | 301 | 1.24 (1.11-1.38) | <.001 |
| Mechanism | ||||
| Blunt | 184 | 240 | 1.22 (1.11-1.34) | <.001 |
| Penetrating | 501 | 64 | 1.36 (1.25-1.47) | <.001 |
| AO initial SBP, mm Hg | ||||
| >60 | 38 | 116 | 1.44 (0.92-2.27) | .11 |
| ≤60 | 570 | 167 | 1.18 (1.07-1.31) | .001 |
Abbreviations: CPR, cardiopulmonary resuscitation; NA, not applicable; REBOA, resuscitative endovascular balloon occlusion of the aorta; RT, resuscitative thoracotomy.
a
All multivariate models adjusted for significant confounders unless confounder was the stratification variable (traumatic brain injury, severe chest injury, severe pelvic injury, admission Glasgow Coma Scale, CPR on arrival, aortic occlusion initial Glasgow Coma Scale).