Mediation analysis with a dependent count variable

I am trying to do a mediation analysis with a dependent count variable. The predictor variable is binary and the mediator is continuous. I have done separate analyses for the path a (linear regression) and for path b (negative binomial regression with an offset). The problem is that I haven't managed to compute the combined indirect effect for a x b. I haven't managed to find a package or code that can analyze the indirect effect for linear regression in the path a and NBR with an offset in path b. Does anyone of you have an idea?

This topic was automatically closed 21 days after the last reply. New replies are no longer allowed.

If you have a query related to it or one of the replies, start a new topic and refer back with a link.