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AIM: To explore the incidence and characteristics of inpatient neonatal adverse events in a Swedish setting.

METHODS: A retrospective record review, using a trigger tool, performed by registered nurses and a neonatologist, at a University Hospital. The identified adverse events were categorised by, for example, preventability, severity and time of occurrence.

RESULTS: A random selection of 150 admissions representing 3531 patient days were reviewed (mean [SD] birthweight 2620 [1120]g). Three hundred sixty adverse events were identified in 78(52.0%) infants and 305(84.7%) of these were assessed as being preventable. The overall adverse event rate was 240 per 100 admissions and 102.0 per 1000 patient days. Preterm infants had a higher rate than term infants (353 versus 79 per 100 admissions, p=0.001), however with regard to the length of stay, the rates were similar. Most adverse events were temporary and less severe (n=338/360, 93.9%) and the most common type involved harm to skin, tissue or blood vessels (n=163/360, 45.3%). Forty percent (n=145) of adverse events occurred within the first week of admission.

CONCLUSION: Adverse events were common in neonatal care and many occurred during the first days of treatment. Characterisation of adverse events may provide focus areas for improvements in patient safety.