Drawing from data reported by the Leapfrog Hospital Survey, the Agency for Healthcare Research and Quality (AHRQ), the Centers for Disease Control and Prevention (CDC), and the Centers for Medicare and Medicaid Services (CMS), this website provides grades for hospitals in the United States based on their safety. The Spring 2022 hospital safety grade results are available. A 2019 report from the Armstrong Institute examines avoidable death associated with grading hospitals.