Combined Age with Mean Decrease Rates of Total Bilirubin and MELD Score as a Novel and Simple Clinical Predictor on 90-Day Transplant-Free Mortality in Adult Patients with Acute Liver Failure Undergoing Plasma Exchange: A Single-Center Retrospective Study

Table 5

Cut-off value, and specificity and sensitivity of the ROC curve.

Variable	Cut-off value	Specificity	Sensitivity
Age	61.50	0.39	0.04
Mean decrease rate of total bilirubin	3.12	0.26	0.82
Mean decrease rate of MELD score	1.21	0.22	0.84
The three combined	0.33	0.87	0.14

ROC, receiver operating characteristic; MELD score, model for end-stage liver disease.