if seems because a class statement was used, the output format change due to the use of a different estimition mechanism. The documentation for the GLIMMIX procedure clarifies that the exponentiation is the result in this case. Here is an excerpt from the GLIMMIX Procedure description (red highlight added): Results designated as odds or odds ratios in the GLIMMIX procedure might reduce to simple exponentiations of solutions in the "Parameter Estimates" table, but they are computed by a different mechanism if the model contains classification variables. The computations rely on general estimable functions; for the MODEL, LSMEANS, and LSMESTIMATEstatements, these functions are based on least squares means. This enables you to obtain odds ratio estimates in more complicated models that involve main effects and interactions, including interactions between continuous and classification variables. In all cases, the results represent the exponentiation of a linear function of the fixed-effects parameters, . If and are the confidence limits for on the logit scale, confidence limits for the odds or the odds ratio are obtained as and > https://support.sas.com/documentation/cdl/en/statug/63962/HTML/default/viewer.htm#statug_glimmix_a0000001450.htm
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