• Sara Lin, Andrew Shermeyer, Sayeh Nikpay, Renee Y Hsia, and Michael J Ward.
• Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
• Acad Emerg Med. 2024 Feb 1; 31 (2): 119128119-128.

BackgroundTimely reperfusion is necessary to reduce morbidity and mortality in patients with ST-elevation myocardial infarction (STEMI). Initial care by facilities with percutaneous coronary intervention (PCI) capabilities reduces time to reperfusion. We sought to examine whether insurance status was associated with initial care at emergency departments (EDs) with PCI capabilities among adult patients with STEMI.MethodsWe conducted a retrospective cross-sectional study using Department of Healthcare Access and Information, a nonpublic statewide database reporting ED visits and hospitalizations in California. We included adults initially arriving at EDs with STEMI by diagnostic code (International Classification of Diseases Ninth Revision or 10th Revision) from 2011 to 2019. Multivariable logistic regression modeling included initial care by PCI capable facility as the primary outcome and insurance status (none vs. any) as the primary exposure. Covariates included patient, facility, and temporal factors and we conducted multiple robustness checks.ResultsWe analyzed 135,358 eligible visits with STEMI included. In our multivariable model, the odds of uninsured patients being initially treated at a PCI-capable facility were significantly lower than those of insured patients (adjusted odds ratio 0.62, 95% CI 0.54-0.72, p < 0.001) and was unchanged in sensitivity analyses.ConclusionsUninsured patients with STEMI had significantly lower odds of first receiving care at facilities with PCI capabilities. Our results suggest potential disparities in accessing high-quality and time-sensitive treatment for uninsured patients with STEMI.© 2023 by the Society for Academic Emergency Medicine.

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