It would probably be better if there was a way to actually attach SAS code and output, and maybe there is, but since I don't know it I'll just type this in. Here is the code: proc genmod data=ds_name; where x = 10; class ID Varname; model response = varname / noint dist=poisson covb; repeated subject=ID / ar(1); contrast 'Contrast Label' Varname 1 -1 0 0 0 0 0 0 0; estimate 'Estimate Label' Varname 1 -1 0 0 0 0 0 0 0; lsmeans Varname / ; run; Here is the output: Contrast Estimate Results Mean Mean L'Beta Standard L'Beta Chi- Label Estimate Conf Limits Estimate Error Alpha Conf Limits Square P > Chi-Square Label 0.28 0.03 2.27 -1.27 1.06 0.05 -3.36 0.82 1.42 0.23 Contrast Results for GEE Analysis Chi- Contrast DF Square Pr > Chi-Square Type Label 1 0.71 0.40 Score Hopefully that's readable. I cut off some decimal places and did other abbreviations to make it fit, but the general gist is the same. Re. the code, I don't see how the "WHERE" statement can matter but I included it anyway. I get the same results regardless of whether I include "NOINT." (I mean, I get the same results as above, but the parameter estimate of course do change.) I don't see how any of the other stuff can matter. The fact that the contrast output indicates it's a Score statistic and the estimate output doesn't say anything about that makes me think they could be doing two different things but still, as I said before, I thought under these circumstances they were doing the same thing.
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