Table 1. Equation for calculating each grade including CTP score, MELD score, ALBI grade and PALBI grade.
| CTP score | Adding points of five categories below | ||
| CTP class | Class A, 5–6 points | Class B, 7–9 points | Class C, 10–15 points |
| 1 point | 2 points | 3 points | |
| Albumin (g/dL) | > 3.5 | 2.8–3.5 | < 2.8 |
| Bilirubin (mg/dL) | < 2 | 2–3 | >3 |
| INR | <1.7 | 1.7–2.3 | >2.3 |
| Ascites | None | Mild | Severe |
| Encephalopathy | None | Grade I or II | Grade III or IV |
| MELD score | 3.78 x loge serum bilirubin (mg/dL) + 11.20 x loge INR + 9.57 x loge serum creatinine (mg/dL) + 6.43 | ||
| MELD grade | Grade 1, <10 | Grade 2, 10–14 | Grade 3, >14 |
| ALBI score | (log10 bilirubin × 0.66) + (albumin × -0.085), where bilirubin is in μmol/L and albumin in g/L | ||
| ALBI grade | Grade 1, ≤-2.60 | Grade 2, >-2.60 to ≤-1.39 |
Grade 3, >-1.39 |
| PALBI score | 2.02 × log10 bilirubin − 0.37 × (log10 bilirubin)2 − 0.04 × albumin − 3.48 × log10 platelets + 1.01 × (log10 platelets) 2 | ||
| PALBI grade | Grade 1, ≤-2.53 | Grade 2, >-2.53 to ≤-2.09 |
Grade 3, >-2.09 |
CTP, Child-Turcotte-Pugh; INR, International normalized ratio; MELD, Model for end-stage liver disease; ALBI, albumin-bilirubin; PALBI, platelet-albumin-bilirubin