Abstract 153: Predictors of Aspirin Nonadherence in Adults with Prior Myocardial Infarction

Background: Medication nonadherence is an alarming public health concern due to its effect on both individual treatment success and overall health care costs. In this study, we sought to identify the predictors of aspirin nonadherence in adults with prior myocardial infarction (MI). Methods: The 2017 Centers for Disease Control’s Behavioral Risk Factor Surveillance Survey was utilized to identify a cohort of 2,173 adults with prior MI who had reported the presence or absence of regular aspirin use. Demographic and clinical history were recorded and compared in individuals reporting the presence versus absence of aspirin adherence (defined as self-reported regular use of aspirin). Results: Among 2,173 adults with prior MI, 1623 (74.7%) reported adherence to aspirin while 550 (25.3%) reported aspirin nonadherence. Adults with aspirin nonadherence were younger, and more likely to be female (50.2% vs. 40.8%, p<0.001), Black (16.3% vs. 12.1%, p<0.001), and of Hispanic ethnicity (21.0% vs. 10.0%, p<0.001). They...