Recommended strategies for preventing AEs in relation to causes of AEs
| Prevention strategies | Frequency n=315 | Percentage* n=315 | Human† (column %*) n=292 | Organisational† (column %*) n=92 | Patient related† (column %*) n=100 | Other† (column %*) n=21 |
| Quality assurance/peer review | 199 | 65 | 68 | 54 | 78 | 67 |
| Evaluation | 187 | 53 | 55 | 57 | 56 | 85 |
| Training | 136 | 50 | 53 | 36 | 48 | 31 |
| Procedures | 138 | 40 | 37 | 67 | 53 | 39 |
| Motivation | 74 | 28 | 28 | 46 | 37 | 15 |
| Information and communication | 83 | 25 | 24 | 46 | 40 | 15 |
| Technology/equipment | 13 | 7 | 8 | 3 | 3 | 0 |
| Personnel | 9 | 3 | 3 | 3 | 2 | 0 |
| Up-scaling | 6 | 2 | 2 | 3 | 3 | 0 |
| Financial investment | 5 | 2 | 1 | 3 | 3 | 0 |
| Other | 21 | 4 | 4 | 5 | 2 | 0 |
Reviewers could select more than one prevention strategy per AE. The number of preventable AEs with technical causes was too small to calculate percentages for the prevention strategy categories.
↵* Percentages were weighted for oversampling of deceased patients and of patients admitted to a university hospital.
↵† Within subgroups of AEs that have human, organisational, patient-related or other causes, respectively.