ROC curves depicting the accuracy of 3 GVHD scoring systems for predicting day-200 NRM in 193 patients from the validation data set. The average aGVHDAI line (small ○) is identical to that in Figure 1C. Data points for grading according to Przepiorka et al4 and the International Bone Marrow Transplant Registry5,10 are shown in panels A and B, respectively. The numbers adjacent to each ROC curve are the areas under the respective curves.