Table 4 Causes of unintended events at the emergency department
From: The nature and causes of unintended events reported at ten emergency departments
Main category |  | Subcategory* | Code | Frequency (%)†| Percentage within each main category (column %)†|
|---|---|---|---|---|---|
Technical (N = 88) | Â | External | T-ex | 19 (2%) | 22% |
| Â | Â | Design | TD | 26 (3%) | 30% |
| Â | Â | Construction | TC | 13 (2%) | 15% |
| Â | Â | Materials | TM | 33 (4%) | 38% |
Human (N = 375) | Â | External | H-ex | 260 (31%) | 69% |
| Â | Knowledge based | Knowledge | HKK | 30 (4%) | 8% |
| Â | Rule based | Qualifications | HRQ | 16 (2%) | 4% |
| Â | Â | Coordination | HRC | 34 (4%) | 9% |
| Â | Â | Verification | HRV | 52 (6%) | 14% |
| Â | Â | Intervention | HRI | 82 (10%) | 22% |
| Â | Â | Monitoring | HRM | 28 (3%) | 7% |
| Â | Skill based | Slips | HSS | 5 (1%) | 1% |
| Â | Â | Tripping | HST | 3 (0%) | 1% |
Organisational (N = 186) | Â | External | O-ex | 108 (13%) | 58% |
| Â | Â | Protocols | OP | 35 (4%) | 19% |
| Â | Â | Transfer of knowledge | OK | 17 (2%) | 9% |
| Â | Â | Management priorities | OM | 32 (4%) | 17% |
| Â | Â | Culture | OC | 19 (2%) | 10% |
Patient related (N = 20) | Â | Patient related | PRF | 20 (2%) | 100% |
Other (N = 13) | Â | Other | X | 13 (2%) | 100% |
Total | Â | Â | Â | 845 (100%) | Â |