AHRQ Agency for Healthcare Research and Quality AMI acute myocardial infarction CI confidence interval CS cardiogenic shock ECMO extracorporeal membrane oxygenation HCUP Healthcare Cost and Utilization Project HF heart failure IABP intra-aortic balloon pump ICD-10-CM International Classification of Diseases, 10th Revision, Clinical Modification ICD-10-PCS International Classification of Diseases, 10th Revision, Procedure Coding System IQR interquartile range IRR incidence Rate Ratio LOS...