Table 1.
Patient Characteristics for all Patients ≥55 Years of Age who Were Injured, Transported and Admitted to a Hospital (January 2006 to December 2007)
| All patients | Non-trauma center | Trauma center | p Value | |
|---|---|---|---|---|
| n (%) | 6,015 | 3,569 (59.3) | 2,446 (40.7) | |
| Demographics | ||||
| Age, y, mean ± SD | 75.9 ± 11.9 | 79.4 (10.8) | 70.7 ± 11.7 | <0.001 |
| Female, n (%) | 3,676 (61.1) | 2,449 (68.8) | 1,227 (50.2) | <0.001 |
| Injury characteristics, n (%) | ||||
| ISS>15 | 244 (4.1) | 80 (2.2) | 164 (6.7) | <0.001 |
| Mechanism type | <0.001 | |||
| Fall | 3,092(51.4) | 2,264 (63.4) | 828 (33.9) | |
| MVC | 791(13.2) | 171 (4.8) | 620 (25.3) | |
| Other | 639(10.6) | 266 (7.5) | 373 (15.2) | |
| Missing | 1,493(24.8) | 868 (24.3) | 625 (25.6) | |
| Blunt mechanism | 4,128(68.6) | 2,479 (69.5) | 1,649 (67.4) | <0.001 |
| Physiology | ||||
| Prehospital SBP, mmHg, mean ±SD | 145.5 ± 28.0 | 145.6 ± 27.6 | 145.2 ± 28.6 | 0.59 |
| Prehospital HR, mean ± SD | 85.2 ± 17.0 | 84.4 ± 16.4 | 86.4 ± 17.6 | <0.001 |
| Prehospital GCS<14, n (%) | 366 (6.1) | 114 (3.2) | 252 (10.3) | <0.001 |
| Procedures, n (%) | ||||
| IR Procedure | 8 (0.1) | 4 (0.1) | 4 (0.2) | <0.001 |
| Nonorthopaedic surgery | 363 (6.0) | 170 (4.8) | 193 (7.9) | <0.001 |
| Outcomes | ||||
| 60-d mortality, n (%) | 460 (7.6) | 320 (9.0) | 140 (5.7) | <0.001 |
| Total costs in dollars, median (IQR) | $12,062 ($5,128–$21,255) | $9,642 ($1,933–$18,252) | $17,875 ($10,644–$32,914) | <0.001 |
| Length of stay, d, median (IQR) | 4.0 (2.0–6.0) | 4.0 (3.0–6.0) | 3.0 (1.0–5.0) | <0.001 |
SD Standard Deviation; ISS Injury Severity Score; SBP Systolic Blood Pressure; HR Heart Rate; GCS Glasgow Coma Score; IR Interventional Radiology; mmHG Millimeter of Mercury; IQR Interquartile range.