Frequency of incidents relating to each WHO incident category
| Incident type | Frequency (%) |
|---|---|
| Clinical process/procedure (eg, incorrect diagnosis, inadequate management of care, wrong patient) | 207 (33) |
| Medication intravenous fluids | 132 (21) |
| (Patient defined) health problem—related to the reason they were in hospital no additional details given* | 76 (12) |
| Healthcare-associated infection | 52 (8) |
| Clinical administration (eg, handover, discharge, patient identification) | 35 (6) |
| (Patient defined) problem during/after care process—indicated that something had gone wrong* | 34 (5) |
| Patient accident (eg, fall in shower) | 22 (3) |
| Medical device/equipment (eg, lack of availability, unclean) | 19 (3) |
| Resources/organisational management | 13 (2) |
| (Patient defined) readmission to hospital–indicated that something had gone wrong* | 10 (2) |
| Documentation (eg, delayed receipt of records, unavailable, incorrect) | 9 (1) |
| (Patient defined) complication* | 9 (1) |
| Nutrition (eg, storage or supply of nutrition, given to wrong patient or at wrong time) | 7 (1) |
| Infrastructure/buildings/fixtures | 4 (1) |
| Blood/blood products | 2 (<1) |
| Oxygen/gas/vapour | 1 (<1) |
| (Patient defined) costs associated with care* | 1 (<1) |
| Total | 633 (100) |
*Additional categories derived in the analysis as proposed by the research team.