Hi All, I am running a negative binomial regression within a multilevel framework using the meglm command. The dependent variable is a count variable with an exposure variable specified. Is there a way to specify this to be a ZERO-INLFATED negative binomial and still maintain the multilevel framework? And, yes I suspect that the excess zero's are generated from a different underlying process. In other words, I have theoretical justification for wanting to do this. I have tried to work-in zinb and related options, but doesn't seem to work inside meglm (mixed-effects general linearized model). Thanks for any advice or suggestions, maybe there is an add-on for this?