Those significant 12 features were throwed into the model: age > 9 = 65, diabetes mellitus; chronic kidney disease (CKD), liver cirrhosis, white blood cell (WBC) count > 10 × 103/μL, bandemia, platelet counts < 10 × 104 μL, serum glucose > 200 mg/dL, systolic blood pressure (BP) < 90 mmHg, C-reactive protein (CRP) > 100 mg/L, creatinine > 1.6 mg/dL, hospital stay. Here, CRP is linked to cirrhosis of liver.