The combination of AlloMap Kidney with AlloSure has greater discriminating ability than either alone. (A) Plot of all quiescence and rejection points from the validation set for both AlloMap Kidney (y axis) and AlloSure (x axis). Circles are all types of quiescence (NR, HS, pNR). Orange triangles, TCMR; blue squares, ABMR. (B) Receiver operating characteristic plots of a linear combination of AlloMap Kidney and AlloSure scores as shown in (A). Blue is the combined score (AUC=0.894), AlloMap Kidney alone is shown in green (AUC=0.768), and AlloSure alone is shown in red (AUC=0.85).