Demographic characteristics of all patients after propensity score matching with or without REBOA
| REBOA (n=22) | No-REBOA (n=22) | P value | Standardized difference | |
| Patient characteristics | ||||
| Male | 18 (81.8) | 15 (68.2) | 0.296 | 0.319 |
| Age (y) | 45 (27–52) | 44 (26–55) | 0.897 | 0.088 |
| Age≥65 (y) | 3 (13.6) | 4 (18.2) | 0.680 | 0.125 |
| BMI | 20 (18–24) | 20 (19–24) | 0.938 | 0.032 |
| Blunt mechanism, n (%) | 19 (86.4) | 20 (90.9) | 0.635 | −0.143 |
| REBOA placement zone, n (%) | ||||
| Zone 1 | 17 (77.3) | – | – | – |
| Zone 2 | 5 (22.7) | – | – | – |
| ISS | 33 (18–43) | 26 (17–39) | 0.444 | 0.284 |
| ISS≥25, n (%) | 15 (68.2) | 12 (54.5) | 0.537 | 0.283 |
| SBP<80 mm Hg, n (%) | 10 (45.5) | 10 (45.5) | 1.000 | 0.000 |
| GCS<9, n (%) | 10 (45.5) | 7 (31.8) | 0.537 | 0.283 |
| Associated injury | ||||
| Head AIS score ≥3, n (%) | 6 (27.3) | 7 (31.8) | 1.000 | −0.100 |
| Chest AIS score ≥3, n (%) | 12 (54.5) | 13 (59.1) | 1.000 | −0.092 |
| Abdomen AIS score ≥3, n (%) | 15 (68.2) | 16 (72.7) | 1.000 | −0.100 |
| Pelvis and lower extremity AIS score ≥3, n (%) | 8 (36.4) | 8 (36.4) | 1.000 | 0.000 |
| Bowel and mesenteric injury, n (%) | 3 (13.6) | 4 (18.2) | 0.680 | −0.125 |
| Emergency surgery | ||||
| Craniotomy, n (%) | 1 (4.5) | 0 (0) | 0.312 | 0.309 |
| Thoracotomy, n (%) | 1 (4.5) | 2 (9.1) | 0.550 | |
| Celiotomy, n (%) | 11 (50.0) | 10 (45.5) | 1.000 | 0.091 |
| Angioembolization, n (%) | 16 (72.7) | 19 (86.4) | 0.262 | −0.343 |
Continuous variables are presented as median (IQR). Categorical variables are presented as number (%).
AIS, Abbreviated Injury Scale; BMI, body mass index; GCS, Glasgow Coma Scale; ISS, Injury Severe Score; REBOA, resuscitative endovascular balloon occlusion of the aorta; SBP, systolic blood pressure.