topic how to compare retention in Statistical Procedures https://communities.sas.com/t5/Statistical-Procedures/how-to-compare-retention/m-p/21598#M673 <HTML><HEAD></HEAD><BODY><P>how to compare the retention of 2 drugs, data is like:</P><P></P><P>Drug&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; week1&nbsp;&nbsp;&nbsp; week2&nbsp;&nbsp;&nbsp; week3 ...............................week20</P><P>drugA&nbsp;&nbsp;&nbsp;&nbsp; 100&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 82&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 55&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 26</P><P>drugB&nbsp;&nbsp;&nbsp;&nbsp; 810&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 580&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 460&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 312&nbsp; </P><P></P><P>The numbers are the patient count who keep using the the drug starting week1.</P><P></P><P>question: retention statistically significant?</P><P></P><P>Thanks.</P></BODY></HTML> Fri, 30 Sep 2011 16:19:13 GMT skk_2011 2011-09-30T16:19:13Z how to compare retention https://communities.sas.com/t5/Statistical-Procedures/how-to-compare-retention/m-p/21598#M673 <HTML><HEAD></HEAD><BODY><P>how to compare the retention of 2 drugs, data is like:</P><P></P><P>Drug&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; week1&nbsp;&nbsp;&nbsp; week2&nbsp;&nbsp;&nbsp; week3 ...............................week20</P><P>drugA&nbsp;&nbsp;&nbsp;&nbsp; 100&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 82&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 55&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 26</P><P>drugB&nbsp;&nbsp;&nbsp;&nbsp; 810&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 580&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 460&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 312&nbsp; </P><P></P><P>The numbers are the patient count who keep using the the drug starting week1.</P><P></P><P>question: retention statistically significant?</P><P></P><P>Thanks.</P></BODY></HTML> Fri, 30 Sep 2011 16:19:13 GMT https://communities.sas.com/t5/Statistical-Procedures/how-to-compare-retention/m-p/21598#M673 skk_2011 2011-09-30T16:19:13Z