Comparative evaluation of clinically relevant CMV infection and moderate-severe cGVHD according to letermovir administration. The top panels show cumulative incidence (CmI) of clinically relevant CMV infection (A) and CmI of moderate-severe cGVHD (B) stratified for letermovir administration. The bottom panels show the multistate stacked transition probabilities, starting from state 1 at time of transplant, illustrating the dynamic prediction of posttransplant possible transition intensities for 2 example patients: a patient not receiving letermovir (C) and a patient receiving letermovir prophylaxis (D).