Table 4. Clinical Presentations and Complications in the MVC and PMVA Group, Stratified by Time of Deatha.
| MVC | PMVA | |||||||
|---|---|---|---|---|---|---|---|---|
| 1st Day | 2nd - 7th Day | > 1 Week | P Value | 1st Day | 2nd - 7th Day | > 1 Week | P Value | |
| Age, y | 31.8 ± 11 | 30.2 ± 13 | 37.6 ± 17.5 | 0.38 | 39.8 ± 21.5 | 34.1 ± 13.3 | 40.4 ± 19.5 | 0.65 |
| Males | 92.3 | 94.7 | 100 | 0.66 | 94 | 100 | 100 | 0.54 |
| Head injury | 71 | 84 | 89 | 0.33 | 71 | 87 | 60 | 0.37 |
| Lung contusion | 69 | 84 | 78 | 0.42 | 47 | 93 | 100 | 0.002 |
| Rib fractures | 46 | 37 | 78 | 0.12 | 41 | 27 | 80 | 0.10 |
| Spleen injury | 5.8 | 15.8 | 22.2 | 0.19 | 18 | 27 | 20 | 0.77 |
| Liver injury | 9.6 | 10.5 | 22.2 | 0.53 | 11.8 | 13.3 | 40 | 0.24 |
| Kidney injury | 5.8 | 0 | 0 | 0.43 | 2.9 | 6.7 | 0 | 0.73 |
| Cardiac injury | 3.8 | 0 | 0 | 0.57 | NA | NA | NA | NA |
| Hemothorax | 25 | 31.6 | 33.3 | 0.78 | 15 | 20 | 40 | 0.39 |
| Pneumothorax | 19 | 37 | 22 | 0.30 | 12 | 40 | 80 | 0.002 |
| ISS | 30.6 ± 13.5 | 31.9 ± 8 | 32.8 ± 11.5 | 0.84 | 25.9 ± 16.6 | 36.5 ± 14.8 | 34.4 ± 9.6 | 0.09 |
| Chest AIS | 4.1 ± 2.2 | 3.3 ± 1.6 | 2.9 ± 0.6 | 0.14 | 3.1 ± 1.4 | 2.9 ± 0.7 | 3.2 ± 0.4 | 0.87 |
| Pneumonia | 0 | 0 | 22.2 | 0.001 | 2.9 | 20 | 0 | 0.08 |
Abbreviations: ARDS, acute respiratory distress syndrome; AIS, abbreviated injury scale; ISS, injury severity score; NA, not available; SD, standard deviation.
aValues are expressed as mean ± SD or No (%).