FIB-4

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  • Score used to assess stage of fibrosis in hepatitis C for patients over age 35 years
  • See MD Calc

Interpretation

Age Score Interpretation
<= 35 needs alternative fibrosis assessment
36-64 <1.3 advanced fibrosis excluded
1.3-2.67 needs further investigations
>2.67 advanced fibrosis likely (F3-F4)
>=65 <2 advanced fibrosis excluded
2-2.67 needs further investigations
>2.67 advanced fibrosis likely
Score Approximate Ishak level of fibrosis
<1.45 0 to 1 (mild)
1.45 to 3.25 2 to 3 (mild to moderate)
>3.25 4 to 6 (moderate to severe)