The Invited Commentary “What Readmission Rates in Canada Tell Us About the Hospital Readmissions Reduction Program,”1 published online April 10, 2019, and in print in May 2019, contained an error in the text. A sentence that read in part “although the authors mitigate some of these concerns by taking a difference-in-difference approach” should have said “although the authors mitigate some of these concerns by examining trends in both countries.” This article was corrected online.