Details of bowtie analysis (BTA) Leads assigned to each of the studies
| Study | Setting | BTA Lead | Experience | Estimated hours spent |
| Misadministration of gentamicin | Hospital | Consultant acute medicine | 15 years | 10 hours over 3–4 months |
| Unknown development of acute kidney injury (AKI) | General practice | Business manager | 16 years | 50 hours over 4 months |
| Disposal of medical devices containing patient identifiable information (PII) | Diagnostics in healthcare sciences | Health physics technical manager | 18 years | 29 hours over 4 months |