Occurrence reported (category) | Instances of occurrence (percentage of missions affected) |
Total no. occurrences reported | 257 |
Total no. missions with occurrences reported | 213 (67.2) |
Simultaneous retrieval | 72 (22.3) |
Helicopter availability | 45 (13.9) |
Clinical event | 35 (10.8) |
Adverse weather | 32 (9.9) |
Equipment problem | 24 (7.4) |
Aircraft technical | 14 (4.3) |
Fixed-wing availability | 12 (3.7) |
Road T/F delays | 9 (2.8) |
No air asset available | 7 (2.2) |
Airport/ATC problems | 5 (1.5) |
Bed/hospital availability | 2 (0.6) |
The data in Abstract 016 table 2 are based on n=317 missions which were suitable for occurrence analysis.