Incorrect Table Data: In the Review entitled “Benefits and Harms of CT Screening for Lung Cancer: a Systematic Review,” published in the June 13, 2012, issue of JAMA (2012;307:2418-2429), there were incorrect data in Table 5 and Table 6. In Table 5, cells in the rows labeled NLST and Bastarrika et al were corrected; in Table 6, cells in the rows labeled LSS, Dépiscan, Menezes et al, and Sobue et al were corrected. The changes to particular cells in the tables were minor, as were the corresponding changes to eFigures 1 through 3. No change altered any statement or conclusion in the article. In addition, a new reference 53 was added and all subsequent citations renumbered. The article and the supplemental material have been corrected online. An accompanying letter to the editor appears in this issue.