Table 2.
Patient Characteristics for all Patients ≥55 Years of Age who Were Injured, Transported, and Admitted to a Hospital, and who Had an ISS>15 (January 2006 to December 2007)
| All patients with ISS>15 | Non-trauma center | Trauma center | p Value |
|
|---|---|---|---|---|
| n (%) | 244 | 80 (32.8) | 164 (67.2) | |
| Demographics | ||||
| Age, y, mean ± SD | 71.1 ± 11.6 | 71.9 ± 12.0 | 70.7 ± 11.3 | <0.001 |
| Female, n (%) | 89 (36.5) | 27 (33.8) | 62 (37.8) | 0.48 |
| Mechanism | ||||
| Mechanism type, n (%) | 0.04 | |||
| Fall | 74 (30.3) | 29 (36.3) | 45 (27.4) | |
| MVC | 87 (35.7) | 35 (43.8) | 52 (31.7) | |
| Other | 28 (11.5) | 12 (15.0) | 43 (26.2) | |
| Missing | 55 (22.5) | 4 (5.0) | 24 (14.6) | |
| Blunt mechanism, n (%) | 182 (74.6) | 65 (81.3) | 117 (71.3) | 0.10 |
| Physiology | ||||
| Prehospital SBP, mmHg, mean ± SD | 140.1 ± 32.9 | 145.6 ± 27.6 | 145.2 ± 28.6 | 0.59 |
| Prehospital HR, mean ± SD | 86.8 ± 20.0 | 88.6 ± 19.6 | 85.9 ± 20.2 | 0.35 |
| Prehospital GCS<14, n (%) | 61 (25.0) | 20 (25.0) | 41 (25.0) | >0.99 |
| Outcomes | ||||
| 60-d mortality, n (%) | 41 (16.8) | 13 (16.3) | 28 (17.1) | 0.87 |
| Total costs in dollars, median (IQR) | $30,748 ($14,756–$76,670) | $14,332 ($5,112–$29,321) | $35,069 ($19,321–$88,357) | <0.001 |
| Length of stay, d, median (IQR) | 4.0 (2.0–6.0) | 5.0 (1.5–8.0) | 6.0 (3.0–14.0) | 0.01 |
SD Standard Deviation; ISS Injury Severity Score; SBP Systolic Blood Pressure; HR Heart Rate; GCS Glasgow Coma Score; mmHG Millimeter of Mercury; IQR Interquartile range.