The Fibrosis 4 score is a non-invasive scoring system based on several laboratory tests that help to estimate the amount of scarring in the liver. This score has been studied in liver disease due to Hepatitis C and NASH.
( Age x AST ) / ( Platelts x ( sqr ( ALT ) )
Explanation of Result :
For NASH : Fib4 score < 1.30 = F0-F1Fib4 score > 2.67 = F3-F4
For HCV with or without HIV : Fib4 score < 1.45 = F0-F1Fib4 score > 3.25 = F3-F4