17.08 National Trends in the Elderly (65-84) and the Supra-Elderly (>85) Trauma: 1997-2012

L. Podolsky2, V. Polcz1,2, O. Sizar1, A. Farooq1,2, M. Bukur1, I. Puente1, R. Farrington1, M. Polcz2, C. Orbay2, F. Habib1  1Broward Health Medical Center,Trauma,Ft Lauderdale, FL, USA 2Florida International University,Surgery,Miami, FL, USA

Introduction:
Trends in incidence and outcomes of traumatic injury among the elderly (age 65-84) and the supra-elderly (age > 85) are unknown. This information has the potential to offer insight into informed trauma system planning and improve outcomes in this highly vulnerable population. 

Methods:
The Healthcare Cost and Utilization Project Nationwide Inpatient Sample (HCUP-NIS) database was queried to identify patients with ICD codes for a traumatic injury. Data, stratified by age group was then abstracted for incidence, lengths of stay, charges, mortality and discharge status for patients for the period 1997-2012. The study period was divided into four periods of 4-years each. Statistical analysis was performed using the ANOVA, t test, and chi square test as appropriate. A p value of <0.05 was used to determine significance. 

Results:

Over the 16-year study period, traumatic events in the elderly have increased by 6.8% (p=0.0005) and by 29% in the supra elderly (p<0.001). In contrast, admissions for injury decreased in both adults and children (6%, and 29.5% respectively, p=0.0005). A decrease in length of stay was seen with decrease from 6.0 to 5.2 days (p<0.0001) in the elderly and 6.2 to 5.0 days (p<0.0001) in the supra-elderly. Length of stay for adults on the other hand has increased from 4.83 to 5.1 (p=0.06). Pediatric patient in-hospital mortality has decreased significantly (p=0.001) with concurrent increases in discharge to home (p=0.003). Adult in-hospital mortality rates and discharges home have remained stable (p=0.83, p=0.24 respectively). Elderly patients have shown stable in-hospital mortality rates (p=0.149) with decreased discharges home (p=0.0003). The supra-elderly have shown the worst trend in outcomes, with significant increases in in-hospital mortality (p=0.0003) and significantly fewer patients being discharged home (p=0.0004). Costs have risen for patients of all age groups over the study period (p<0.0001). 

Conclusion:

Geriatric trauma is rising at an exponential rate, with the elderly and supra-elderly patients forming an increasing proportion of the trauma population. These elderly and supra-elderly patients have been shown to have poorer outcomes, as demonstrated by in-hospital mortality and discharge status. Geriatric specific trauma programs are urgently needed to address this evolving epidemic.