AST to Platelet Ratio Index (APRI)

AST to Platelet Ratio Index (APRI)
[text name="variable_1"] <-- AST (IU/L)
[text name="variable_2"] <-- Upper Limit of Normal for AST (IU/L)
[text name="variable_3"] <-- Platelet Count (10^9/L)
Result --> [calc value="score_1=100*((variable_1)/((variable_2)*(variable_3))).toFixed(2)" memo="number"]
Interpretation --> [calc value="score_2=100*((variable_1)/((variable_2)*(variable_3)));score_2>2?'Likely cirrhosis':score_2>1.5?'Likely significant fibrosis, cirrhosis possible':score_2>0.5?'Significant fibrosis or cirrhosis possible':score_2>0.3?'Unlikely cirrhosis, significant fibrosis possible':'Unlikely cirrhosis or significant fibrosis'" memo="interpretation"]
[checkbox memo="hide/display references and links" name="footnotes" value=""][conditional field="footnotes" condition="(footnotes).isNot('')"]
references:
[link url="https://www.ncbi.nlm.nih.gov/pubmed/19034235" memo="#1"] Loaeza-del-Castillo A, Paz-Pineda F, Oviedo-Cárdenas E, Sánchez-Avila F, Vargas-Vorácková F. AST to platelet ratio index (APRI) for the noninvasive evaluation of liver fibrosis. Ann Hepatol. 2008 Oct-Dec;7(4):350-7.
[link url="https://www.ncbi.nlm.nih.gov/pubmed/21319189" memo="#2"] Lin ZH, Xin YN, Dong QJ, Wang Q, Jiang XJ, Zhan SH, Sun Y, Xuan SY. Performance of the aspartate aminotransferase-to-platelet ratio index for the staging of hepatitis C-related fibrosis: an updated meta-analysis. Hepatology. 2011 Mar;53(3):726-36. [/conditional]