topic Re: Proc Lifetest Stratified Vs Unstratified log rank test in Statistical Procedures

topic Re: Proc Lifetest Stratified Vs Unstratified log rank test in Statistical Procedures https://communities.sas.com/t5/Statistical-Procedures/Proc-Lifetest-Stratified-Vs-Unstratified-log-rank-test/m-p/504757#M25947 <P>The LIFETEST documentation <A href="https://go.documentation.sas.com/?cdcId=pgmsascdc&cdcVersion=9.4_3.4&docsetId=statug&docsetTarget=statug_lifetest_examples.htm&locale=en" target="_self">features a few examples</A>, some of which use the STRATA statement. </P> <P> </P> <P>For example: </P> <UL> <LI><SPAN class="section_toc"><A class="ng-scope" tabindex="0" href="https://go.documentation.sas.com/?cdcId=pgmsascdc&cdcVersion=9.4_3.4&docsetId=statug&docsetTarget=statug_lifetest_examples01.htm&locale=en" data-docset-id="statug" data-docset-version="14.3" data-original-href="statug_lifetest_examples01.htm">72.1 Product-Limit Estimates and Tests of Association</A> (stratified by Cell type).  Example output:</SPAN></LI> </UL> <TABLE class="table" summary="Procedure DOCUMENT: Rank Statistics" frame="box" rules="all" cellspacing="0" cellpadding="5"><COLGROUP><COL /><COL /><COL /></COLGROUP> <THEAD> <TR> <TH class="c b header" colspan="3" scope="colgroup">Rank Statistics</TH> </TR> <TR> <TH class="l b header" scope="col">Cell</TH> <TH class="r b header" scope="col">Log-Rank</TH> <TH class="r b header" scope="col">Wilcoxon</TH> </TR> </THEAD> <TBODY> <TR> <TH class="l rowheader" scope="row">adeno</TH> <TD class="r data">10.306</TD> <TD class="r data">697.0</TD> </TR> <TR> <TH class="l rowheader" scope="row">large</TH> <TD class="r data">-8.549</TD> <TD class="r data">-1085.0</TD> </TR> <TR> <TH class="l rowheader" scope="row">small</TH> <TD class="r data">14.898</TD> <TD class="r data">1278.0</TD> </TR> <TR> <TH class="l rowheader" scope="row">squamous</TH> <TD class="r data">-16.655</TD> <TD class="r data">-890.0</TD> </TR> </TBODY> </TABLE> <P> </P> <P><SPAN class="section_toc">Compare to:</SPAN></P> <UL> <LI><SPAN class="section_toc"><A class="ng-scope" tabindex="0" href="https://go.documentation.sas.com/?cdcId=pgmsascdc&cdcVersion=9.4_3.4&docsetId=statug&docsetTarget=statug_lifetest_examples03.htm&locale=en" data-docset-id="statug" data-docset-version="14.3" data-original-href="statug_lifetest_examples03.htm">72.3 Life-Table Estimates for Males with Angina Pectoris</A> (no strata used)</SPAN></LI> </UL> <P> </P> <P><SPAN class="section_toc">(Disclaimer: I'm no expert on LIFETEST -- just reading the syntax used)</SPAN></P> <P><SPAN class="section_toc"> </SPAN></P> Tue, 16 Oct 2018 15:35:36 GMT ChrisHemedinger 2018-10-16T15:35:36Z Proc Lifetest Stratified Vs Unstratified log rank test https://communities.sas.com/t5/Statistical-Procedures/Proc-Lifetest-Stratified-Vs-Unstratified-log-rank-test/m-p/503315#M25910 <P>Please give an example of Stratified Vs Unstratified log rank test SAS code. Thanks!!</P> Thu, 11 Oct 2018 06:39:02 GMT https://communities.sas.com/t5/Statistical-Procedures/Proc-Lifetest-Stratified-Vs-Unstratified-log-rank-test/m-p/503315#M25910 Kollon 2018-10-11T06:39:02Z Re: Proc Lifetest Stratified Vs Unstratified log rank test https://communities.sas.com/t5/Statistical-Procedures/Proc-Lifetest-Stratified-Vs-Unstratified-log-rank-test/m-p/504757#M25947 <P>The LIFETEST documentation <A href="https://go.documentation.sas.com/?cdcId=pgmsascdc&cdcVersion=9.4_3.4&docsetId=statug&docsetTarget=statug_lifetest_examples.htm&locale=en" target="_self">features a few examples</A>, some of which use the STRATA statement. </P> <P> </P> <P>For example: </P> <UL> <LI><SPAN class="section_toc"><A class="ng-scope" tabindex="0" href="https://go.documentation.sas.com/?cdcId=pgmsascdc&cdcVersion=9.4_3.4&docsetId=statug&docsetTarget=statug_lifetest_examples01.htm&locale=en" data-docset-id="statug" data-docset-version="14.3" data-original-href="statug_lifetest_examples01.htm">72.1 Product-Limit Estimates and Tests of Association</A> (stratified by Cell type).  Example output:</SPAN></LI> </UL> <TABLE class="table" summary="Procedure DOCUMENT: Rank Statistics" frame="box" rules="all" cellspacing="0" cellpadding="5"><COLGROUP><COL /><COL /><COL /></COLGROUP> <THEAD> <TR> <TH class="c b header" colspan="3" scope="colgroup">Rank Statistics</TH> </TR> <TR> <TH class="l b header" scope="col">Cell</TH> <TH class="r b header" scope="col">Log-Rank</TH> <TH class="r b header" scope="col">Wilcoxon</TH> </TR> </THEAD> <TBODY> <TR> <TH class="l rowheader" scope="row">adeno</TH> <TD class="r data">10.306</TD> <TD class="r data">697.0</TD> </TR> <TR> <TH class="l rowheader" scope="row">large</TH> <TD class="r data">-8.549</TD> <TD class="r data">-1085.0</TD> </TR> <TR> <TH class="l rowheader" scope="row">small</TH> <TD class="r data">14.898</TD> <TD class="r data">1278.0</TD> </TR> <TR> <TH class="l rowheader" scope="row">squamous</TH> <TD class="r data">-16.655</TD> <TD class="r data">-890.0</TD> </TR> </TBODY> </TABLE> <P> </P> <P><SPAN class="section_toc">Compare to:</SPAN></P> <UL> <LI><SPAN class="section_toc"><A class="ng-scope" tabindex="0" href="https://go.documentation.sas.com/?cdcId=pgmsascdc&cdcVersion=9.4_3.4&docsetId=statug&docsetTarget=statug_lifetest_examples03.htm&locale=en" data-docset-id="statug" data-docset-version="14.3" data-original-href="statug_lifetest_examples03.htm">72.3 Life-Table Estimates for Males with Angina Pectoris</A> (no strata used)</SPAN></LI> </UL> <P> </P> <P><SPAN class="section_toc">(Disclaimer: I'm no expert on LIFETEST -- just reading the syntax used)</SPAN></P> <P><SPAN class="section_toc"> </SPAN></P> Tue, 16 Oct 2018 15:35:36 GMT https://communities.sas.com/t5/Statistical-Procedures/Proc-Lifetest-Stratified-Vs-Unstratified-log-rank-test/m-p/504757#M25947 ChrisHemedinger 2018-10-16T15:35:36Z