I had some data where I had previously examined the proportion with recurrent hepatocellular carcinoma (HCC) using the BN model as such
The investigator is now interested in, for example, the effect of gender on HCC recurrence. I have the number of males in each study.
Can this be analyzed?
I ask because in every example I've seen, the mods variable(s) is/are something that only varies between studies (i.e. study year, study location, whatever), not within studies.
Is it possible I could make a study-specific variable to reflect gender, something like proportion male? Or is this not something that can be done?
I'm new to meta-analysis so any help is appreciated.