Bioequivalence and Bioavailability Forum

I have a problem with determining sample size for generalized models. Does anyone here have any idea how to determine the sample size for generalized linear models (GMM, GEE, GlzM, etc ...)? I intend to use a statistical model with an ordinal categorical dependent variable (3 levels) and 10 predictor variables (2 numerical, 6 nominal categorical and 2 counts). Thank you very much for any kind of discussion.

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Edit: Category changed. [Helmut]