topic Re: Three-level model with categorical outcome and complex sampling in SAS Procedures

Three-level model with categorical outcome and complex sampling

yoosoo — Tue, 27 Oct 2015 16:32:47 GMT

Dear everyone,

I seeking your advice on whether SAS will be able to fit my model, and if so, which procedure.

My data has a three-level structure (country, community, individual) with a binary outcome variable at level 1, and main independent variable at level 2. The data was collected using two-stage complex sampling, hence I hope to incorporate stratification and sample weight in the model. Sampling strata is not being analysed as a separate level.

Thank you for your help in advance!

Re: Three-level model with categorical outcome and complex sampling

ballardw — Tue, 27 Oct 2015 16:56:43 GMT

Without more details this sound like you may be looking at Proc SurveyLogisitic.

Re: Three-level model with categorical outcome and complex sampling

SteveDenham — Thu, 29 Oct 2015 14:25:14 GMT

And if you have SAS/STAT14.1 installed, then PROC GLIMMIX has an example (45.18 Weighted Multilevel Model for Survey Data) that covers a two level model, and an example of a three level model using the quadrature method to fit the data (45.19 Quadrature Method for Multilevel Model), that has students, classes and schools. By combining the principles in these examples, I think you can get what you are after.

Steve Denham