https://communities.sas.com/t5/SAS-Procedures/Cross-Validation-of-Logistic-Regression-Model/m-p/76815#M22276 There is a bootstrap tool on the SAS support web site that works well. Check out this knowledgebase article:<BR /> <BR /> <A href="http://support.sas.com/kb/22/220.html" target="_blank">http://support.sas.com/kb/22/220.html</A> Wed, 11 Mar 2009 14:58:12 GMT Doc_Duke 2009-03-11T14:58:12Z https://communities.sas.com/t5/SAS-Procedures/Cross-Validation-of-Logistic-Regression-Model/m-p/76814#M22275 Hi. Does anyone know if there is a macro/procedure out there to cross validate matched case-control logistic regression models developed using Proc LOGISTIC or Proc PHREG? Wed, 11 Mar 2009 01:08:52 GMT https://communities.sas.com/t5/SAS-Procedures/Cross-Validation-of-Logistic-Regression-Model/m-p/76814#M22275 deleted_user 2009-03-11T01:08:52Z https://communities.sas.com/t5/SAS-Procedures/Cross-Validation-of-Logistic-Regression-Model/m-p/76815#M22276 There is a bootstrap tool on the SAS support web site that works well. Check out this knowledgebase article:<BR /> <BR /> <A href="http://support.sas.com/kb/22/220.html" target="_blank">http://support.sas.com/kb/22/220.html</A> Wed, 11 Mar 2009 14:58:12 GMT https://communities.sas.com/t5/SAS-Procedures/Cross-Validation-of-Logistic-Regression-Model/m-p/76815#M22276 Doc_Duke 2009-03-11T14:58:12Z