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doi: 10.2106/JBJS.ER.15.01009
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The Journal publishes corrections when they are of significance to patient care, scientific data or record-keeping, or authorship, whether that error was made by an author, editor, or staff. Errata also appear in the online version and are attached to files downloaded from

In the article entitled “Racial and Ethnic Disparities in Utilization Rate, Hospital Volume, and Perioperative Outcomes After Total Knee Arthroplasty” (J Bone Joint Surg Am. 2016;98:1243-52), by Zhang et al., there were errors in Tables I and II, on pages 1245, 1246, and 1248. In both tables, frequencies with a count of ≤10 were reported in individual table cells, which is against the rules put forth by the Healthcare Cost and Utilization Project. Any cell that had contained a specific value that was ≤10 should have contained “≤10.”

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