Signalement des EIG par des enquêtes nationales

Design: Retrospective review of 1014 medical and nursing records. Setting: Two acute hospitals in Greater London area. Main outcome measure: Number of adverse events. Results: 110 (10.8%) patients experienced an adverse event, with an overall rate of adverse events of 11.7% when multiple adverse events were included. About half of these events were judged preventable with ordinary standards of care. A third of adverse events led to moderate or greater disability or death.