For those with expertise in meta-analysis, please advise if we can combine Hazards Ratio with Odds ratio or Risk ratio?

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Shin Murakami

You cannot combine them in Revman5 but can calculate each and "copy and paste (or screenshot)" by clicking the commands (right above of forest fig, OR, RR, or RD). It is very easy.

Glenn Colby

This should help: https://www.campbellcollaboration.org/escalc/html/EffectSizeCalculator-OR-main.php

Sitara Karim

I agree with Shin Murakami