https://communities.sas.com/t5/New-SAS-User/WARNING-message-in-proc-genmod/m-p/775608#M31313 Fixed! Thank so much Paige! Thu, 21 Oct 2021 11:29:11 GMT Kunko 2021-10-21T11:29:11Z https://communities.sas.com/t5/New-SAS-User/WARNING-message-in-proc-genmod/m-p/775601#M31311 <P>I am trying to model the rish of diet score in tertiles (i.e. three leveles:T1, T2 T3) on risk of developing a disease (binary outcome) using modified poisson regression.&nbsp;I am gettng the outputs with estimates (Relative risks and 95% CIs), but receiving a warning "More coefficients than levels specified for effect WDP_Terttile2e. Some coefficients&nbsp;will be ignored."&nbsp;How can address this problem? Will it have any effect on my estimates (Relative risks) and confidence interval if I use the current outputs that I am getting?<BR />607 Proc genmod descending data = bloodprofile30_darsy;<BR />608 class codea WDP_Terttile2e muspgen reduc21_c income21cat rcig21_c rrrchalc21_c TVHrPerW<BR />608! TPA_scorecat M211 ;<BR />609 model TCHDLR30_Q=WDP_Terttile2e muspgen age21ffq reduc21_c income21cat rcig21_c<BR />609! rrrchalc21_c TVHrPerW TPA_scorecat M211 LEnergy_kC /dist = /*binomial */ poisson link=log<BR />609! lrci type3;<BR />610 repeated subject = codea/ type = unstr;<BR />611 estimate 'T2 vs T1' WDP_Terttile2e -1 1 0 0/exp;<BR />612 estimate 'T3 vs T1' WDP_Terttile2e -1 0 1 0/exp;<BR />613 format WDP_Terttile2e WDP_Terttile2e.;<BR />614 run;</P><P>NOTE: The DESCENDING option applies only to the multinomial distribution with ordinal response.<BR />NOTE: Class levels for some variables were not printed due to excessive size.<BR />NOTE: Algorithm converged.<BR />NOTE: Algorithm converged.<BR />NOTE: The empirical covariance matrix estimate is used in the ESTIMATE statement.<BR />WARNING: More coefficients than levels specified for effect WDP_Terttile2e. Some coefficients<BR />will be ignored.<BR />WARNING: More coefficients than levels specified for effect WDP_Terttile2e. Some coefficients<BR />will be ignored.<BR />NOTE: PROCEDURE GENMOD used (Total process time):<BR />real time 1.01 seconds</P> Thu, 21 Oct 2021 10:58:16 GMT https://communities.sas.com/t5/New-SAS-User/WARNING-message-in-proc-genmod/m-p/775601#M31311 Kunko 2021-10-21T10:58:16Z https://communities.sas.com/t5/New-SAS-User/WARNING-message-in-proc-genmod/m-p/775605#M31312 <P>Your tertile variable has 3 levels.</P> <P>&nbsp;</P> <P>Your ESTIMATE statement for comparing tertile levels has 4 levels.</P> Thu, 21 Oct 2021 11:28:51 GMT https://communities.sas.com/t5/New-SAS-User/WARNING-message-in-proc-genmod/m-p/775605#M31312 PaigeMiller 2021-10-21T11:28:51Z https://communities.sas.com/t5/New-SAS-User/WARNING-message-in-proc-genmod/m-p/775608#M31313 Fixed! Thank so much Paige! Thu, 21 Oct 2021 11:29:11 GMT https://communities.sas.com/t5/New-SAS-User/WARNING-message-in-proc-genmod/m-p/775608#M31313 Kunko 2021-10-21T11:29:11Z