Table 2 Effect of using deduced, conventional, or mixed thresholds on FFT parameters. #- indicates the FFT model number; models with number ‘2.1’ or higher did not include lactate as a variable; Sens. – sensitivity, Spec. – specificity. Youden’s J statistic = sensitivity + specificity – 1 summarizes the performance of each model

From: Identifying trigger cues for hospital blood transfusions based on ensemble of machine learning methods