Retrospective cohort study of false alarm rates associated with a series of heart operations: the case for hospital mortality monitoring groups.


OBJECTIVE To examine the efficacy of different methods of detecting a high death rate and determining whether an increase in deaths after heart transplantation could be explained by chance. DESIGN Retrospective analysis of deaths after heart transplantation. Seven methods were used: mortality above national average, mortality excessively above national… (More)


11 Figures and Tables