Abstract Body (Do not enter title and authors here): Background: Patient care experience is strongly associated with outcomes among individuals with cardiovascular disease. There is growing concern that the recent and precipitous rise in private equity acquisitions of US hospitals may worsen patient-centered care, and ultimately, cardiovascular outcomes. However, little is known about how private equity acquisitions of hospitals impact patient care experience.

Research Question: To evaluate whether the acquisition of US hospitals by private equity firms was associated with changes in measures of patient-reported experience compared with matched control hospitals (not acquired by private equity) between 2007-2019.

Methods: This cohort study identified 74 US acute care hospitals newly acquired by private equity firms and 298 matched control (non-acquired) hospitals from 2007 to 2019. CMS Hospital Compare files were used to obtain patient experience measure scores for each hospital from Hospital Consumer Assessment of Healthcare Providers and Systems (HCAPHS) survey results. A quasi-experimental difference-in-differences design was used to evaluate changes in patient experience measures at private-equity acquired hospitals compared with matched control hospitals 3 years before vs 3 years after acquisition.

Results: The percentage of patients rating hospitals as a 9 or 10 out of 10 at private equity acquired hospitals and control hospitals is shown in the Figure. There was a differential decrease in patient ratings (of 9 or 10 out of 10) at hospitals acquired by private equity firms compared with control hospitals (-2.4 percentage points [95% CI -3.9, -0.9]). A similar trend was seen in the percentage of patients that would definitely recommend the hospital, with a differential decrease at private equity-acquired hospitals relative to control hospitals (-2.2 percentage points [95% CI -3.6, -0.7]). For both measures, the relative decrease in patient care experience at private equity hospitals compared with control hospitals steadily grew with each subsequent year after acquisition.

Conclusion: In this national study, patient-reported care experience worsened after private equity acquisition of US hospitals, which has important implications for cardiovascular care and outcomes.