Access to Percutaneous Coronary Intervention Facilities and Clinical Outcomes in Patients With Acute Myocardial Infarction

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The study assessed whether new PCI facilities were associated with access, treatment, and outcomes among California patients with AMI from 2011 through 2022.
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A new facility qualified as an exposure when it performed at least 10 PCIs annually and was reachable within a 30-minute drive of a patient's zip code community.
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The cohort included California residents with STEMI or NSTEMI and excluded patients with missing identifiers or geographic data and those living more than 100 miles from the treating facility.
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Outcomes included admission to a PCI-capable facility, PCI receipt, unscheduled acute care within 30 days, and all-cause mortality at 30 days and 1 year.
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Researchers used California patient and hospital records, driving-time estimates, and linear probability models with community and time fixed effects to estimate associations.

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