Table 2.
Demographic characteristics of combined dataset for step 1–3
| Variable | Total sample (n = 3401) | European (EU) sample (n = 1649) | Western Australian (WA) sample (n = 1752) | Difference between EU and WA sample |
|---|---|---|---|---|
| Gender | ||||
| Male, n(%) | 2412 (70.9%) | 1192 (72.3%) | 1220 (69.6%) | p = 0.089 |
| Age | ||||
| Mean (SD) | 41.1 (15.5) | 42.0 (14.6) | 40.3 (16.3) | p < 0.001 |
| Range | 18–90 years | 18–90 years | 18–89 years | |
| %TBSA burned | ||||
| Mean (SD) | 9.6 (12.2) | 13.5 (13.7) | 5.9 (9.1) | p < 0.001 |
| Range | 0–90% | 0–90% | 0–75% | |
| %TBSA burned | ||||
| 0- < 5% | 1587 (46.7%) | 429 (26.0%) | 1158 (66.1%) | |
| 5–20% | 1364 (40.1%) | 882 (53.5%) | 482 (27.5%) | |
| > 20% | 450 (13.2%) | 338 (20.5%) | 112 (6.4%) | |
| Length of hospital stay | ||||
| Mean (SD) | 16.0 (20.7) | 23.1 (24.8) | 9.1 (12.4) | p < 0.001 |
| Range | 0–246 days | 0–246 days | 0–130 days | |
| Nr of surgeries | ||||
| Mean (SD) | 1.3 (2.1) | 1.5 (2.7) | 1.1 (1.2) | p = 0.013 |
| Range | 0–35 surgeries | 0–35 surgeries | 0–12 surgeries | |
| Nr surgery, n(%) | ||||
| 0 | 720 (21.2%) | 487 (29.5%) | 233 (13.3%) | |
| 1 | 1682 (49.5%) | 608 (36.9%) | 1074 (61.3%) | |
| > 1 | 569 (16.7%) | 369 (22.4%) | 200 (11.4%) | |
| Unknown | 430 (12.6%) | 185 (11.2%) | 245 (14.0%) | |
| Etiology (%) | p < 0.001 | |||
| Scald | 784 (23.1%) | 277 (16.8%) | 507 (28.9%) | |
| Contact | 282 (8.3%) | 52 (3.2%) | 230 (13.1%) | |
| Flame | 1444 (42.5%) | 753 (45.7%) | 691 (39.4%) | |
| Chemical | 155 (4.6%) | 59 (3.6%) | 96 (5.5%) | |
| Electrical | 82 (2.4%) | 56 (3.4%) | 26 (1.5%) | |
| Other | 129 (3.8%) | 36 (2.2%) | 94 (5.4%) | |
| Unknown | 525 (15.4%) | 416 (25.2%) | 109 (6.2%) | |