Table 1. Non-PPP versus PPP groups.
| Non-PPP group (n = 28) |
PPP group (n = 30) |
P value | |
|---|---|---|---|
| Age (years) | 57.0 ± 22.8 | 62.5 ± 14.4 | 0.287 |
| Sex (male) | 16 (57.1) | 20 (66.7) | 0.455 |
| Injury Severity Score | 38.7 ± 9.2 | 38.4 ± 8.5 | 0.893 |
| Transfer from other hospital | 14 (50) | 19 (63.3) | 0.306 |
| Initial hemoglobin (g/dL) | 10.8 ± 3.0 | 9.9 ± 2.5 | 0.215 |
| Initial lactate (mmol/L) | 5.51 ± 3.56 | 4.90 ± 2.92 | 0.475 |
| Initial SBP (mmHg) | 71.8 ± 10.8 | 68.0 ± 9.8 | 0.172 |
| Pelvic fracture type (Young & Burgess classification) | 0.055* | ||
| APC type II | 1 (3.6) | 1 (3.3) | |
| APC type III | 0 | 3 (10.0) | |
| LC type I | 3 (10.7) | 0 | |
| LC type II | 7 (25.0) | 11 (36.7) | |
| LC type III | 14 (50.0) | 8 (26.7) | |
| VS type | 3 (10.7) | 7 (23.3) | |
| Open pelvic fracture | 1 (3.6) | 2 (6.7) | 1.000* |
| Combined injury | 22 (78.6) | 28 (93.3) | 0.138* |
| Concurrent laparotomy | 4 (14.3) | 7 (23.3) | 0.508* |
| Pelvic external fixation | 0 | 9 (30.0) | 0.002* |
| Emergent pelvic angiography | 10 (35.7) | 9 (30.0) | 0.517 |
| Requirement of packed RBCs for 4 hours (units) | 8.6 ± 5.2 | 12.1 ± 9.9 | 0.101 |
| Requirement of packed RBCs for additional 12 hours (units) | 2 (0–22) (19/28) | 4 (0–24) (29/30) | 0.669 |
| Mortality | 16 (57.1) | 12 (40.0) | 0.300 |
| Mortality due to hemorrhage | 14 (50.0) | 5 (16.7) | 0.007 |
APC, anterior posterior compression; LC, lateral compression; PPP, preperitoneal pelvic packing; RBCs, red blood cells; SBP, systolic blood pressure; VS, vertical shearing
*Result of Fisher’s exact test