https://communities.sas.com/t5/SAS-Procedures/Sensitivity-Specificity-and-Youden-index/m-p/309597#M61251 <P>I am studying a biomarker for predicting the blood pressure response and I want to determine the best cutoff for this biomarker using Youden's index. How can I do that in SAS? and what is the code that I can use to determine that?</P> Sun, 06 Nov 2016 17:53:47 GMT mmehanna 2016-11-06T17:53:47Z https://communities.sas.com/t5/SAS-Procedures/Sensitivity-Specificity-and-Youden-index/m-p/309597#M61251 <P>I am studying a biomarker for predicting the blood pressure response and I want to determine the best cutoff for this biomarker using Youden's index. How can I do that in SAS? and what is the code that I can use to determine that?</P> Sun, 06 Nov 2016 17:53:47 GMT https://communities.sas.com/t5/SAS-Procedures/Sensitivity-Specificity-and-Youden-index/m-p/309597#M61251 mmehanna 2016-11-06T17:53:47Z https://communities.sas.com/t5/SAS-Procedures/Sensitivity-Specificity-and-Youden-index/m-p/423291#M68104 <P>i'm not familiar with youden's index but i guess it is not your only option. Eg these people at the mayo clinic make a couple of SAS macros available for the purpose ie %cutpoint and %findcut: <A href="http://www.mayo.edu/research/documents/biostat-79pdf/doc-10027230" target="_blank">http://www.mayo.edu/research/documents/biostat-79pdf/doc-10027230</A></P> Fri, 22 Dec 2017 09:40:49 GMT https://communities.sas.com/t5/SAS-Procedures/Sensitivity-Specificity-and-Youden-index/m-p/423291#M68104 pau13rown 2017-12-22T09:40:49Z