Fibrosis-4 (FIB-4) Calculator

Fibrosis-4 (FIB-4) Calculator
[text size=3 name="age"] <-- Age
[text size=3 name="alt"] <-- ALT
[text size=3 name="ast"] <-- AST
[text size=3 name="plt"] <-- Platelets
[calc memo="number" value="score=((ast)*(age)/((plt)*(Math.pow((alt),0.5)))).toFixed(2)"] <-- score
[calc memo="number" value="score2=((ast)*(age)/((plt)*(Math.pow((alt),0.5)))).toFixed(2);score2>3.25?'possibly consistent with advanced fibrosis':score2>=1.45?'within the normal zone':'possibly consistent with advanced fibrosis'"] <-- interpretation (advanced fibrosis may be present above 3.25 and below 1.45)
[checkbox memo="Hide/Display References" name="footnotes" value=""][conditional field="footnotes" condition="(footnotes).is('')"]
references: 
 [link url="//pubmed.ncbi.nlm.nih.gov/16729309/" memo="#1"] 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.[/conditional]