Table 1.
Demographics and outcomes of all patients based on LOS/%TBSA.
| All | LOS/%TBSA < 2.0 (expected-stay) | LOS/%TBSA ≥ 2.0 (long-stay) | p | |
|---|---|---|---|---|
| No. of patients | 583 | 477 | 106 | |
| Age, years, mean ± SD | 47 ± 18 | 45 ± 17 | 56 ± 18 | <0.0001 |
| Age ≥ 65, no. (%) | 100 (17%) | 70 (15%) | 30 (28%) | 0.002 |
| Male, no. (%) | 431 (74%) | 360 (76%) | 71 (67%) | 0.086 |
| TBSA, %, mean ± SD | 21 ± 13 | 21 ± 12 | 21 ± 14 | 0.923 |
| 3rd degree TBSA, %, mean ± SD | 9 ± 13 | 8 ± 13 | 14 ± 14 | <0.001 |
| Inhalation injury, no. (%) | 133 (23%) | 98 (21%) | 35 (33%) | 0.007 |
| Days to admit, mean ± SD | 1 ± 2 | 1 ± 2 | 1 ± 2 | 0.784 |
| Etiology, no. (%) | ||||
| Flame | 421 (72%) | 337 (71%) | 84 (79%) | 0.093 |
| Scald | 123 (21%) | 109 (23%) | 14 (13%) | 0.034 |
| Chemical | 10 (2%) | 9 (2%) | 1 (1%) | 0.699 |
| Radiation | 1 (0.2%) | 1 (0.2%) | 0 | 1.000 |
| Electrical | 26 (5%) | 19 (4%) | 7 (7%) | 0.294 |
| Contact | 2 (0.3%) | 2 (0.4%) | 0 | 1.000 |
| LOS, days, median (IQR) | 20 (15–33) | 18 (13–26) | 45 (31–70) | <0.0001 |
| LOS, days/TBSA, %, median (IQR) | 1.2 (0.9-1.7) | 1.1 (0.8–1.4) | 2.5 (2.2–3.4) | <0.0001 |
| Number of procedures, mean ± SD | 7 ± 8 | 6 ± 6 | 12 ± 11 | <0.0001 |
| Ventilated, no. (%) | 294 (50%) | 217 (46%) | 77 (73%) | <0.0001 |
| Ventilated daysa, mean ± SD | 17 ± 18 | 13 ± 13 | 29 ± 24 | <0.0001 |
Numbers may not add to 100 due to rounding.
LOS, length of stay; TBSA, total body surface area.
a
Analysis restricted to patients that were on a mechanical ventilator.