| Abbreviations | Definition |
| AIS | Abbreviated Injury Scale |
| ICU | Intensive Care Unit |
| ISS | Injury Severity Score |
| LOS | Length of Stay |
| MCAR | Missing Completely At Random |
| NTDB | National Trauma Data Bank |
| GCS | Glasgow Coma Scale |
| ISSAIS | Injury Severity Score for Abbreviated Injury Scale |
| LR | Likelihood Ratio |
| STROBE | Strengthening the Reporting of Observational Studies in Epidemiology |
| US | United States |
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