Mortality associated with traumatic injuries in the elderly: a population based study.

Elderly trauma is increasing in incidence and is associated with significant morbidity and mortality. The primary objective of the study was to identify factors associated with survival or mortality in the elderly following trauma. The secondary objective was to compare the epidemiology of trauma in the elderly with younger patients. A retrospective analysis was performed of data that was obtained from a prospectively collected multi-centre trauma database maintained by The Scottish Trauma Audit Group (STAG) containing details of 52,887 trauma patients admitted to 25 participating Scottish Hospitals over an 11-year period. Elderly trauma patients (aged >80 years) were separately analyzed and compared to younger trauma patients (aged 13-80). Of 52,887 trauma patients identified, 4791 were elderly (9.1%). Elderly patients had a higher absolute mortality rate following traumatic injury (9.9% versus 4%, p<0.001). Mortality in the elderly was higher in males, following a high fall, with lower Glasgow Coma Scale (GCS), in those with higher Abbreviated Injury Scale (AIS)/Injury Severity Score (ISS), in those with concomitant injuries, hemodynamic compromise and following delayed presentation. Multiple logistic regression analysis confirmed an independent relationship between mortality and low GCS, male gender, higher ISS, higher AIS of spinal injury, hemodynamic compromise and concomitant minor leg/arm injury(ies) in the elderly. In conclusion, trauma in elderly patients is associated with significantly higher mortality. Low GCS, male gender, higher ISS, higher AIS of spinal injury, hemodynamic compromise and concomitant minor leg/arm injury(ies) have the strongest independent relationships with mortality after trauma in the elderly population.