ROC curves to measure accuracy of triplet mismatches as CCI predictors. ROC curves show (1-specificity) versus sensitivity when using different thresholds of the number of HIMMs and TMMs to predict the transfusion outcomes (CCIs) with all patients (solid line) and with the exclusion of patient 11 (dashed line). The area beneath the ROC curves is indicated for the complete data set (A₁) or for the data set exclusive of patient 11 (A₂).