Hospital Characteristics Associated With Heterogeneity in Institutional Postacute Care Spending Reductions Under the Comprehensive Care for Joint Replacement Model

ObjectiveTo determine whether mandatory participation by hospitals in bundled payments for lower extremity joint replacement (LEJR) was associated with changes in outcome disparities for patients dually eligible for Medicare and Medicaid.Data Sources and Study SettingWe used Medicare claims data for beneficiaries undergoing LEJR in the United States between 2011 and 2017.Study DesignWe conducted a retrospective observational study using a differences‐in‐differences method to compare changes in outcome disparities between dual‐eligible and non‐dual eligible beneficiaries after hospital participation in the Comprehensive Care for Joint Replacement (CJR) program. The primary outcome was LEJR complications. Secondary outcomes included 90‐day readmissions and mortality.Data Extraction MethodsWe identified hospitals in the US market areas eligible for CJR. We included beneficiaries in the intervention group who received joint replacement at hospitals in markets randomized to participate in CJR. The comparison group included patients who received joint replacement at hospitals in markets who were eligible for CJR but randomized to control.Principal FindingsThe study included 1,603,555 Medicare beneficiaries (mean age, 74.6 years, 64.3% women, 11.0% dual‐eligible). Among participant hospitals, complications decreased between baseline and intervention periods from 11.0% to 10.1% for dual‐eligible and 7.0% to 6.4% for non‐dual‐eligible beneficiaries. Among nonparticipant hospitals, complications decreased from 10.3% to 9.8% for dual‐eligible and 6.7% to 6.0% for non‐dual‐eligible beneficiaries. In adjusted analysis, CJR participation was associated with a reduced difference in complications between dual‐eligible and non‐dual‐eligible beneficiaries (−0.9 percentage points, 95% CI −1.6 to −0.1). The reduction in disparities was observed among hospitals without prior experience in a voluntary LEJR bundled payment model. There were no differential changes in 90‐day readmissions or mortality.ConclusionsMandatory participation in a bundled payment program was associated with reduced disparities in joint replacement complications for Medicare beneficiaries with low income. To our knowledge, this is the first evidence of reduced socioeconomic disparities in outcomes under value‐based payments.

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Hospital Characteristics Associated With Heterogeneity in Institutional Postacute Care Spending Reductions Under the Comprehensive Care for Joint Replacement Model

Cited by 2 publications

References 16 publications

Physical and Cognitive Function Trends in Post-acute Care after Total Joint Arthroplasty in Medicare Beneficiaries: 2013-2018

Physical and Cognitive Function Trends in Post-acute Care after Total Joint Arthroplasty in Medicare Beneficiaries: 2013-2018

Association between mandatory bundled payments and changes in socioeconomic disparities for joint replacement outcomes

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