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March 27, 2013

Data Error and Expanded Explanation in: Warfarin After Bioprosthetic Aortic Valve Implantation

JAMA. 2013;309(12):1229. doi:10.1001/jama.2013.2856

Data Error and Expanded Explanation: In the Editorial entitled “Warfarin After Bioprosthetic Aortic Valve Implantation” published in the November 28, 2012, issue of JAMA (2012;308[20]:2147-2148), in the fifth full paragraph, the second sentence should be “From days 30 to 89 after surgery, patients taking warfarin had 6.5 fewer intracranial, gastrointestinal, urinary tract, or airway bleeding events per 100 person-years compared with those not taking warfarin (P = .006).” In this same paragraph, the last sentence should be “Therefore, somewhat surprisingly, the early benefits of warfarin did not appear to come at a cost of more bleeding events.” The following will become the last sentence of this paragraph: “The design of the study may have precluded an adequate assessment of bleeding risk, given that the primary reason for stopping warfarin may have been a bleeding event itself.” This article has been corrected online.