Hi,

Please can you advise how to do this code correctly. I want to run the clogit command within a nested case-control dataset. I have one outcome variable, three independent variables, one propensity score I wish to control for and three variables I want to see if have a moderating effect on the independent variables.

So I have the following code:

Code:
clogit case i.var1 i.var2 i.var3 (c.p_score), group(set) or
I do not know how to fit my three other variables as interactions to assess if any one of these three variables has a moderating effect.