I am trying to meta-analyze studies that report Overall Survival (OS) with studies that report only the Hazard Ratio for OS. How can I interconvert both variables to a comparable unit to execute the meta-analysis?
Thanks in advance!
Hello, Desai! Thank you so much for your availability.
I am trying to meta-analyze one outcome. Consider it to be survival in patients exposed to condition X.
2 studies report the Overall Survival for the patients exposed to condition X. 2 other studies report only the Hazard Ratio of the Overall Survival for the patients exposed to the same condition X.
I was looking and it seems I need to convert the HRs into a format that can be integrated with the studies reporting OS directly. Some places report it as the Survival Ratio, which would be SR=e(ln(HR)∗C) (where C is the average time (in years) that patients were followed up).
I still want to know if this is the proper way to do it!
Thank you once again!
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