I’m currently trying to perform a meta-analysis in R via the
metafor package using data that does not have a control group. In this case, I am looking to see whether or not a type of surgical intervention improves symptoms in these unique type of patients. Essentially, the only data I have from these studies is whether symptoms of their certain pain has improved.
Would this be a meta-analysis of proportions? Or would I do a standard REML in
metafor: For example, one paper gives the data that 20/25 patients had symptoms that improved. Thus, would I have 4 data points, “creating” my own control group?:
- Surgery_improvement: 20 patients
- Surgery_no_improvement: 5 patients
- No_surgery_improvement: 0 patients (obviously, as this doesn’t even exist)
- No_surgery_no_improvement: 25 patients
And then perform a standard meta-analysis?