CARES helps communities measure performance and identify how to improve cardiac arrest survival rates. By joining CARES, communities gain more than just access to information that will help them improve performance and save lives. They also contribute to one of the largest EMS registries in the world, and one of the few that also includes patient outcome information from hospitals. Those features enable CARES data to be used to conduct vital research that furthers our knowledge of cardiac arrest treatment and saves countless lives for years to come.
New nationwide research using CARES data highlights a persistent gap in survival from out-of-hospital cardiac arrest between daytime and nighttime hours. Patients experiencing cardiac arrest at night have significantly lower odds of return of spontaneous circulation and neurologically favorable surv
Access the CARES 2025 National Reports and accompanying metrics video.
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