In-Hospital Mortality and Coronary Procedure Use for Individuals with Dementia with Acute Myocardial Infarction in the United States

Objectives To determine in‐hospital mortality differences in individuals with dementia and acute myocardial infarction (AMI) when using invasive coronary procedures. Design Retrospective cohort study. Setting 2009 Nationwide Inpatient Sample. Participants Individuals admitted with a primary diagnosis of AMI (N = 631,734) to 1,045 hospitals in 44 states during 2009. Measurements Dementia status and procedural use of diagnostic catheterization, percutaneous intervention (PCI), and coronary artery bypass grafts (CABG) as indicated by International Classification of Diseases, Ninth Revision, codes. The primary outcome was in‐hospital mortality. Using multivariable analysis adjusted for covariates, associations were made between coronary procedural use in individuals with dementia and in‐hospital mortality. Additional multivariable analysis identified the association between utilization of coronary procedures and in‐hospital mortality in AMI patients with dementia. Results Dementia diagnosis (n = 15,335) was associated with greater likelihood of in‐hospital mortality (odds ratio (OR) = 1.22, 95% confidence interval (CI) = 1.15–1.29, P