FIGURE 2.

receiver operating characteristic curves predicting molecular and histological rejection in the test set, based on test set predictions from the logistic regression model built using dd-cfDNA fraction and quantity in the training set. MMDx shows better performance than traditional histology in rejection diagnosis of KTx. AUC, area under the receiver operating characteristic curve; dd-cfDNA, donor-derived cell-free DNA; KTx, kidney transplant; MMDx, molecular microscope diagnostic system.