The Viewpoint titled “Regional Variation in Surgical Procedure Rates: Going Beyond Description,”1 published on November 3, 2021, was corrected to fix an incorrect word in the sentence “The presence of regional variation in surgical rates raises questions about the underlying causes, including whether the variation exceeds differences that could be expected due to differences in the prevalence of the underlying disease in the population, and whether physicians or patients are the primary drivers of traits.” The word “traits” should have been “rates.” This article was corrected online.