Ariss RW, Minhas AMK, Nazir S, et al. - This study attempted to ascertain the relationship between type 2 myocardial infarction (MI) and outcomes (in-hospital mortality, index length of stay, hospital costs, discharge to nursing facility, and 30-day all-cause readmissions) using complex samples, multivariable logistic and linear regression models. A total of 382,896 weighted primary atrial fibrillation (AF) hospitalizations were included in this study. It was shown that type 2 MI in the setting of AF hospitalization is correlated with high in-hospital mortality and increased resource utilization.