I'm currently running a surveylogistic regression with a binary by variable. I'd like to compare the coefficients beween the two models (ie when the by variable =1 versus when the by variable =0). Below is an example of the code: proc surveylogistic data=data1; by b; model y (desc) = x1 x2 x3; cluster x4; run; Where both b and y are binary 0/1 variables. The output shows two separate regressions, one for when b=0 and one for when b=1. Again, I'd like to compare the coefficients across those two regressions, but can't seem to figure out how. I do not want to simply include interactions between b and all the x variables, as I'd like the regressions to be separate. Does anyone know how to do this? Thanks in advance!!!
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