AMI	acute myocardial infarction
AOR	adjusted odds ratio
CABG	coronary artery bypass grafting
CI	confidence interval
CICU	cardiac intensive care unit
CS	cardiogenic shock
HCUP	Healthcare Cost and Utilization Project
ICD-9CM	International Classification of Diseases-9 Clinical Modification
IQR	interquartile range
LOS	length of stay
NIS	National/Nationwide Inpatient Sample
NSTEMI	non-ST-segment elevation myocardial infarction
OR	odds ratio
PCI	percutaneous coronary intervention
STEMI	ST-segment elevation myocardial infarction