Association Between Ambulatory Care Utilization and Coronary Artery Disease Outcomes by Race/Ethnicity.

Background Coronary artery disease is common, and there exist disparities in management and outcomes. The purpose of this study is to examine the association between ambulatory care utilizations and inpatient acute myocardial infarction (AMI) mortality. Methods and Results This is a retrospective analysis of a stratified national sample of Medicare fee-for-service enrollees aged 66 years and older from January 1, 2010 to December 31, 2011.