In the Original Investigation entitled “Estimating Time to ESRD in Children With CKD” that appeared in the June 2018 issue of AJKD (Furth et al, volume 71, issue 6, pages 783-792), there was an error in the description of the analysis shown in Figure S2. On page 787, the last sentence of the Results, “Figure S2 shows standardized times, wi, derived from the cross-validation superimposed on the survival function of the standard lognormal LN[0,1],” should instead read “Figure S2 shows standardized times, wi, derived from the cross-validation superimposed on the survival function e−t of the standard exponential,” as was specified in the Methods.