Hi All,

I am quite new to Stata. I have five variables which each ask whether cannabis has been consumed in a certain way in the past 12 months. They are: vaped, dabbed, smoked, eaten, and drank. Obviously these are not mutually exclusive (i.e. if someone has vaped that does not mean they haven't used cannabis by any other method in the past 12 months). I am wondering if there is a way to create a meaningful composite variable? I would like to know which of these methods a person has used in the past 12 months. Is there a way to create a composite variable to measure this? I imagine it would have to be a variable with a bunch of different categories to account for different drug combinations. In such a variable, my guess is that the cell count would be super low for certain sections (like dabbed, vaped, and smoked, for example). Is there anything I can do here?

Best,
Nick