MELD score
Serum creatinine
float
Serum bilirubin
International Normalized Ratio
3.8*loge(bilirubin[mg/dL]) + 11.2*loge(INR) + 9.6*loge(creatinine [mg/dL]) + 6.4*(etiology: 0 if cholestatic or alcoholic, 1 otherwise)