In the version of the article, “Body Mass Index and Prognosis in Patients With Chronic Heart Failure: Insights From the Candesartan in Heart failure: Assessment of Reduction in Mortality and morbidity (CHARM) Program,” by Kenchaiah et al that posted online on July 16, 2007 (DOI: 10.1161/CIRCULATIONAHA.106.679779), several errors occurred. In the Methods and Results section of the abstract, line 11, the value of P for interaction was shown as “0.001” but should have been “0.0001.” The same error occurred on page 5, column 2, line 7. Also, on page 2, column 2, line 20, the value “=6 months” should have been “≤6 months.” The authors regret these errors. Two entries in Table 2 were inadvertently switched. In Table 2, line 17, the P value for the age- and sex-adjusted model was listed as “1.00 (referent),” and the fully adjusted hazard ratio (95% confidence interval) was listed as “…” (ellipses to indicate a blank or nonapplicable cell). These should have been reversed so that the P value was listed as “…” and the fully adjusted hazard ratio (95% confidence interval) was listed as “1.00 (referent).” The publisher regrets this error. These errors have been corrected in the final print version of the article in the August 7, 2007, issue of the journal (Circulation. 2007;116:627-636) and in the current online version.