Kaplan-Meier analysis of all-cause mortality, cardiovascular mortality and 1-year hospitalization for heart failure in young MI patients. Kaplan-Meier curves for all-cause mortality, cardiovascular mortality and 1-year hospitalization for heart failure for (A) the matched cohort and (B) those in the matched cohort who survived to discharge, stratified by AMI-CS status. AMI-CS patients in all comparisons experienced greater adverse outcomes, except for all-cause mortality in those who survived to discharge. HR, hazard ratio. *Matched for age, sex, race, hypertension, smoking status, left main coronary artery disease, ST elevation myocardial infarction (STEMI). #Multivariate analyses adjusted for age, sex, area deprivation index (ADI), out-of-hospital cardiac arrest (OHCA), ST elevation myocardial infarction (STEMI).