Between 2003 and 2016 in the United States, risk-adjusted mortality improved significantly for inpatients undergoing CABG, but remained unchanged for those undergoing PCI.
Significant changes were found in the characteristics of patients undergoing PCI and CABG in the United States between 2003 and 2016. Risk-adjusted mortality decreased significantly after CABG but not after PCI across all clinical indications.
Alkhouli et al. (2020) studied this question.