Table 1.

Equations for scores

Score	Equation
FIB-4 score19	(Age [years]×AST(IU/L))/(platelet count(109/L)×(ALT (IU/L))1/2)
FIB-5 score16	(albumin (g/L)×0.3+platelet count (109/L)×0.05)−(alkaline phosphatase (IU/L)×0.014+AST/ALT ratio×6+14)
APRI score14	((AST/ULN)/platelet count (109/L))×100

ALT, alanine transaminase;APRI, AST to platelet ratio index; AST, aspartate transaminase;FIB, fibrosis index; ULN, upper limit of normal.