🧫 Fatty Liver Index (FLI)
UseWhen to use: metabolic-risk adults when TG, BMI, GGT, and waist are available.
Strata<30 steatosis less likely; ≥60 more likely; 30–59 indeterminate.
LimitsWhen not to use: as fibrosis staging. · Pitfall: TG in mmol/L without conversion. · Pair with FIB-4 / elastography.
SourceBedogni G et al. Fatty Liver Index
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
0–100.
When to use
When to use: metabolic-risk adults when TG, BMI, GGT, and waist are available.
How it works
FLI=(e^y/(1+e^y))×100; y=0.953·ln(TG)+0.139·BMI+0.718·ln(GGT)+0.053·waist−15.745.
Key points
- 0–100.
- <30 / ≥60 cutoffs.
- Next: metabolic workup / FibroScan.
References
- Bedogni G et al. Fatty Liver Index
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.
| Triglycerides | 150 mg/dL |
|---|---|
| BMI | 28 kg/m² |
| GGT | 40 U/L |
| Waist circumference | 95 cm |
→FLI64.7/100
- Band:≥60 — steatosis more likely (rule-in band)
- TG unit:Use mg/dL (mmol/L × 88.57 ≈ mg/dL)
Verification & sources · governance
FAQ
Frequently asked questions
- Does Fatty Liver Index (FLI) 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 Fatty Liver Index (FLI) calculated in practice? Can you show a worked example?
- Inputs: Triglycerides 150 mg/dL, BMI 28 kg/m², GGT 40 U/L, Waist circumference 95 cm → Result: FLI 64.7 /100(Band: ≥60 — steatosis more likely (rule-in band), TG unit: Use mg/dL (mmol/L × 88.57 ≈ mg/dL))