Since 1999, the in-hospital, all-cause 30-day mortality rates for coronary artery bypass grafting (CABG) surgery have been on the rise. This is concerning and it is unclear if, despite continued public reporting of institutional mortality rates, the changes are related to quality of care.
This study will investigate whether there is a correlation between the proportions of preventable in-hospital death for CABG surgery and all-cause, in-hospital CABG mortality in Ontario. It will also investigate what patient, physician and institutional factors predict preventable death.