https://communities.sas.com/t5/SAS-Programming/trying-to-get-p-values-for-pairwise-comparisons-in-proc-glm/m-p/928014#M365148 <P>To add the pairwise comparisons and p-values for the interaction term, change your LSMEANS statement to this:</P><PRE><CODE class="">lsmeans placstat hiv placstat * hiv / pdiff=all adjust=tukey;</CODE></PRE> Sun, 12 May 2024 00:53:22 GMT dpalmer1 2024-05-12T00:53:22Z https://communities.sas.com/t5/SAS-Programming/trying-to-get-p-values-for-pairwise-comparisons-in-proc-glm/m-p/928003#M365142 <P>I am trying to analyze a dataset that has two dichotomous variables (placstat and hiv) predicting a continuous variable (lplacwbc). The data are unbalanced. I am interested in seeing a matrix for pairwise comparisons, with p values, for all possible comparisons. The following code yields the output provided (not showing the model output, only lsmeans output). I may be missing something simple here, but I cannot figure it out!</P><P>&nbsp;</P><P>proc glm;<BR />class placstat hiv;<BR />model lplacwbc=placstat hiv placstat*hiv/ ss1 ss2 ss3 ss4;<BR />lsmeans placstat hiv/pdiff=all adjust=tukey;<BR />run;</P><P>&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="jmbmpm_0-1715467172359.png" style="width: 400px;"><img src="https://communities.sas.com/t5/image/serverpage/image-id/96449iC1BF1A733E075622/image-size/medium?v=v2&amp;px=400" role="button" title="jmbmpm_0-1715467172359.png" alt="jmbmpm_0-1715467172359.png" /></span></P><P>&nbsp;</P><P>&nbsp;</P> Sat, 11 May 2024 22:42:31 GMT https://communities.sas.com/t5/SAS-Programming/trying-to-get-p-values-for-pairwise-comparisons-in-proc-glm/m-p/928003#M365142 jmbmpm 2024-05-11T22:42:31Z https://communities.sas.com/t5/SAS-Programming/trying-to-get-p-values-for-pairwise-comparisons-in-proc-glm/m-p/928014#M365148 <P>To add the pairwise comparisons and p-values for the interaction term, change your LSMEANS statement to this:</P><PRE><CODE class="">lsmeans placstat hiv placstat * hiv / pdiff=all adjust=tukey;</CODE></PRE> Sun, 12 May 2024 00:53:22 GMT https://communities.sas.com/t5/SAS-Programming/trying-to-get-p-values-for-pairwise-comparisons-in-proc-glm/m-p/928014#M365148 dpalmer1 2024-05-12T00:53:22Z https://communities.sas.com/t5/SAS-Programming/trying-to-get-p-values-for-pairwise-comparisons-in-proc-glm/m-p/928016#M365150 Perfect. So simple and it eluded me! Thanks! Sun, 12 May 2024 01:24:51 GMT https://communities.sas.com/t5/SAS-Programming/trying-to-get-p-values-for-pairwise-comparisons-in-proc-glm/m-p/928016#M365150 jmbmpm 2024-05-12T01:24:51Z