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The Impact of Simultaneous Hospital Participation in Accountable Care Organizations and Bundled Payments on Episode Outcomes.

Liao JM, Wang E, Isidro U, Navathe AS. The Impact of Simultaneous Hospital Participation in Accountable Care Organizations and Bundled Payments on Episode Outcomes. American journal of medical quality : the official journal of the American College of Medical Quality. 2022 Mar 1; 37(2):173-179.

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Abstract:

Among hospitals accepting bundled payments, simultaneous "co-participation" in accountable care organizations (ACOs) could impact episode outcomes compared to bundled payment participation alone. Difference-in-differences (DID) analysis of 1 857 653 ACO-attributed Medicare beneficiaries. The study exposure was hospitalization for 24 procedure-based and 24 condition-based episodes at hospitals participating in bundled payments and ACOs (co-participant) versus only bundled payments. Study outcomes included episode quality, postacute utilization, and spending. For procedure-based episodes, patients hospitalized at co-participant and bundled payment hospitals did not exhibit differential changes in risk-adjusted mortality (DID 0.04 percentage points [p.p.], 95% confidence interval [CI] -0.28 p.p. to 0.37 p.p., P = 0.79), readmissions (DID -0.32 p.p., 95% CI -1.5 p.p. to 0.82 p.p., P = 0.59), postdischarge institutional spending (DID $119, 95% CI -$216 to $455, P = 0.49), or postacute utilization. Similarly, outcomes for condition-based episodes did not vary between co-participant and bundled payment hospitals. Payment model co-participation may produce neither synergistic benefits nor negative effects for patients.




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