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In the Original Investigation titled “Association of Hospital Participation in a Medicare Bundled Payment Program With Volume and Case Mix of Lower Extermity Joint Replacement Episodes,” published in the September 4, 2018, issue of JAMA,1 data in a table and in the Results section were incorrect. In the “Complicated” row of Table 4, the means per 1000 beneficiaries with lower extremity joint replacement (LEJR) in the Non-BCPI (Bundled Payments for Care Improvement) Markets columns, the means in both the Before BCPI and After BCPI colums should read “0.16.” In the BPCI Markets columns, the means and (SDs) in the Before BCPI column should read “0.15 (0.07)” and in the After BCPI columns, “0.15 (0.06).” The SD for the difference should have read “(−3.7).” In the Market Volume subsection of the Results section, the parenthetical observation about complicated LEJRs in the non-BPCI markets should read “(10 episodes or 0.16 episodes per 1000 beneficiaries …)”; in the BPCI markets, the parenthetical data for complicated LEJRs should read “(17 episodes or 0.15 per 1000 beneficiaries …).” This article was corrected online.
Error in Data Presentation in Text and Table. JAMA. 2018;320(22):2381. doi:10.1001/jama.2018.17985
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