FIB-4 Index for Liver Fibrosis
FIB-4 Index for Liver Fibrosis - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
Open the FIB-4 Index for Liver Fibrosis → Runs in your browser. No signup, no tracking.
What this is
FIB-4 Index for Liver Fibrosis is one of 230 deterministic tools in Sophie Well's Clinical Math & Conversions group. FIB-4 Index for Liver Fibrosis - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Sterling RK, Lissen E, Clumeck N, et al. Development of a simple noninvasive index to predict significant fibrosis in patients with HIV/HCV coinfection. Hepatology. 2006;43(6):1317-1325. Read the source ↗
Worked example: FIB-4 3.48 - rules in advanced fibrosis (PPV 65% per Sterling 2006).
Sophie Well is a reference and educational tool. Not medical, legal, or financial advice. Does not replace clinician judgment, professional billing review, or legal counsel.