• Emily Arntson, Justin B Dimick, Ushapoorna Nuliyalu, Josh Errickson, Tedi A Engler, and Andrew M Ryan.
• University of Michigan Medical School, Ann Arbor, Michigan.
• Ann. Surg. 2021 Oct 1; 274 (4): e301e307e301-e307.

ImportanceTo improve patient safety, the Centers for Medicare and Medicaid Services announced the Hospital-Acquired Condition Reduction Program (HACRP) in August 2013. The program reduces Medicare payments by 1% for hospitals in the lowest performance quartile related to hospital-acquired conditions. Performance measures are focused on perioperative care.ObjectiveTo evaluate changes in HACs and 30-day mortality after the announcement of the HACRP.DesignInterrupted time-series design using Medicare Provider and Analysis Review (MEDPAR) claims data. We estimated models with linear splines to test for changes in HACs and 30-day mortality before the Affordable Care Act (ACA), after the ACA, and after the HACRP.SettingFee-for-service Medicare 2009-2015.ParticipantsMedicare beneficiaries undergoing surgery and discharged from an acute care hospital between January 2009 and August 2015 (N = 8,857,877).Main Outcome And MeasureChanges in HACs and 30-day mortality after the announcement of the HACRP.ResultsPatients experienced HACs at a rate of 13.39 per 1000 discharges [95% confidence interval (CI), 13.10 to 13.68] in the pre-ACA period. This declined after the ACA was passed and declined further after the HACRP announcement [adjusted difference in annual slope, -1.34 (95% CI, -1.64 to -1.04)]. Adjusted 30-day mortality was 3.69 (95% CI, 3.64 to 3.74) in the pre-ACA period among patients receiving surgery. Thirty-day mortality continued to decline after the ACA [adjusted annual slope -0.04 (95% CI, -0.05 to -0.02)] but was flat after the HACRP [adjusted annual slope -0.01 (95% CI, -0.04 to 0.02)].Conclusions And RelevanceAlthough hospital-acquired conditions targeted under the HACRP declined at a greater rate after the program was announced, 30-day mortality was unchanged.Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

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