Kaplan-Meier curves displaying the post-HCT OS in the study cohort. (A) Comparison of post-HCT OS among the control, PcGVHD, and unclassified groups. (B) Comparison of post-HCT OS between the NIH− and NIH+ groups and those who did not meet the adapted criteria. (C) Comparison of post-HCT OS among different PcGVHD phenotypes. All hazard ratios (95% CI, P values) noted in the figures were from multivariable Cox proportional hazard models adjusting for age, recipient sex, KPS, transplant location (at the NIH or in the community), transplant indication, donor type, graft source, and relapse/refractory malignancy.