Actual and potential harm of the incidents reported
| Harm to patients following from the incident | Definition | Actual harm (reported), in 423 of 476 incident reports (53 missing) | Potential harm (estimated), estimated by IRP-committee in all 476 incident reports |
| Non | No harm for the patient | 107 (25%) | 60 (13%) |
| Minor | Delay for the patient such as long waiting time and/or additional treatment in primary care necessary and/or irritation and/or extra costs | 248 (58%) | 346 (73%) |
| Moderate | Minor temporary injury and/or additional treatment in hospital necessary and/or conflict with the patient and/or important extra costs | 55 (13%) | 46 (10%) |
| Major | Serious temporary injury and/or minor, but permanent harm and/or hospital admission necessary and/or large extra costs | 11 (3%) | 19 (4%) |
| Catastrophic | Death or life-threatening situation and/or serious permanent injury | 2 (0.5%) | 3 (0.5%) |