A and B. In the training set (n=500), overall survival (OS) and progression free survival (PFS) were not significantly different between EBV+ DLBCL and EBV− DLBCL (P=.189 and P=.687, respectively). C. Lack of difference in OS between EBV+ DLBCL and EBV− DLBCL was reproduced (P=.849) in the validation set (n=232). D. Combining the training set and validation set, OS was not significantly different between EBV+ DLBCL and EBV− DLBCL (P=.192). E and F. EBV positivity in DLBCL also failed to show any significant difference in cases of germinal center B-cell (GCB) versus activated B-cell (ABC) phenotype, OS (P=.650 and P=.290, respectively).