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FIB-4 (fibrosis-4 score) is a simple index for estimating hepatic fibrosis based on a calculation derived from AST, ALT and platelet concentrations, and age. Transient elastography (e.g. FibroScan) or FibroTest may be the preferred NITs in settings where they are available and cost is not a major constraint.


FIB-4 Score Caculator








FIB-4 Score= (Age x AST ) / (Platelet count x ALT1/2)

Your FIB-4 Score :


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Interpretation:

Fib-4 score >3.6 in adults


Fib-4 score > 3.6 has an 87% specificity and 45% sensitivity in diagnosing cirrhosis
(Xu et al. PLOS ONE 2014).