Table 3.
Operational characteristics
| HEMS | Road (estimated) | |
|---|---|---|
| Total missions, n | 979 | 979 |
| Median distance (km) (IQR) | 35.4 (22.5-–40.2) | 47.7 (30.5–71.1) |
| < 30 km, n (%)a | 342 (34.9) | 241 (24.6) |
| ≥ 100 km, n (%)¶ | 37 (3.8) | 70 (7.1) |
| Median duration (min) (IQR) | 12 (10–15) | |
| Flow of transfers & clinical classification | ||
| University to university | 32 (3.3%) | |
| Simple clinical examination | 6 (0.6) | |
| Emergency treatment | 26 (2.7) | |
| Resuscitation or life-saving measures | 0 (0) | |
| Regional to regional | 36 (3.7%) | |
| Simple clinical examination | 14 (1.4) | |
| Emergency treatment | 21 (2.1) | |
| Resuscitation or life-saving measures | 1 (0.1) | |
| University to regional | 139 (14.2%) | |
| Simple clinical examination | 39 (4.0) | |
| Emergency treatment | 98 (10.0) | |
| Resuscitation or life-saving measures | 2 (0.2) | |
| Regional to university | 772 (78.8%) | |
| Simple clinical examination | 265 (27.1) | |
| Emergency treatment | 470 (48.0) | |
| Resuscitation or life-saving measures | 37 (3.8) | |
| Night mission 7 pm–7 am | 361 (36.9%) | |
IQR: interquartile range
aExpert recommendation by Kim et al. study, ¶expert recommendation by Kristiansen et al. study