title: Correction.
abstract: In the article by Howard et al, "Population-Based Study of Incidence, Risk Factors, Outcome, and Prognosis of Ischemic Peripheral Arterial Events," which published online ahead of print September 8, 2015, and appears in the November 10, 2015 issue of the journal (Circulation. 2015;132:1805-1815. DOI: 110.1161/CIRCULATIONAHA.115.016424), a correction was needed. The copyright line should have read, "© 2015 The Authors. Circulation is published on behalf of the American Heart Association, Inc., by Wolters Kluwer. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution, and reproduction in any medium, provided that the original work is properly cited." We regret the error. This correction has been made to the print version and to the current online version of the article, which is available at http://circ.ahajournals.org/content/132/19/1805.full