According to the analysis results for the logistic regression model regarding the contribution rate of each feature (Table 2; Figure 3), the 13 most important variables in the data set were APSIII, vasopressin, Sp2, valve replacement, cefepime, GCS score, admission age, Model for End-stage Liver Disease (MELD), urine output, magnesium, prothrombin time (PT), norepinephrine, and red blood cells. Here, F2 is linked to End Stage Liver Disease.