Outcomes: The pilot hospital outcomes are compared with hospital outcomes from non-pilot California hospitals performing either elective PCIs with surgery on-site or ST segment elevation myocardial infarction (STEMI) only PCIs. The non-pilot clinical data is obtained from the 120 California hospitals that submit their clinical data directly to the NCDR® data center and is used for the analysis of the data. Both the non-pilot and pilot data sets are analyzed and compared using SAS statistical software (version 9.3 for Windows, SAS Institute, Cary, NC).