🫁 Forns Index (Liver Fibrosis)
UseWhen to use: pretreatment HCV staging adjunct when platelets, GGT, cholesterol, age known.
Strata<4.2 rule-out / >6.9 rule-in significant fibrosis bands.
LimitsWhen not to use: as sole cirrhosis diagnosis. · Pitfall: statin-lowered cholesterol. · Prefer elastography when available.
SourceForns X et al. Hepatology 2002
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
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Methodology · worked example, guidelines & full notes
HCV fibrosis screen.
When to use
When to use: pretreatment HCV staging adjunct when platelets, GGT, cholesterol, age known.
How it works
7.811−3.131 ln(PLT)+0.781 ln(GGT)+3.467 ln(age)−0.014·chol.
Key points
- HCV fibrosis screen.
- <4.2 / >6.9.
- Next: FIB-4 / FibroScan.
References
- Forns X et al. Hepatology 2002
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Age | 45 y |
|---|---|
| GGT | 60 U/L |
| Cholesterol | 180 mg/dL |
| Platelets | 180 ×10⁹/L |
→Forns5.43
- Cue：4.2–6.9 — indeterminate; consider elastography / FIB-4
Verification & sources · governance
FAQ
Frequently asked questions
- Does Forns Index (Liver Fibrosis) upload patient data? Where is it calculated?
- Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
- How is Forns Index (Liver Fibrosis) calculated in practice? Can you show a worked example?
- Inputs: Age 45 y, GGT 60 U/L, Cholesterol 180 mg/dL, Platelets 180 ×10⁹/L → Result: Forns 5.43（Cue: 4.2–6.9 — indeterminate; consider elastography / FIB-4）