The receiver-operating characteristic analysis showed that these four circulating miRNAs strongly discriminated patients with allograft rejection from patients without rejection : miR-10a ( AUC = 0.975 ) , miR-31 ( AUC = 0.932 ) , miR-92a ( AUC = 0.989 ) , and miR-155 ( AUC = 0.998 , P < 0.0001 for all comparisons ) .