[R-meta] Fwd: Question on Umbrella review and other types

[Dr. Gerta Rücker]

Hi (whoever you are),

If you want to repeat the old meta-analysis anyway, assuming that all studies adhere to some common well-defined inclusion criteria,  then why not conducting a meta-analysis including the union of all studies included in the two older reviews and the new studies? This would simply be an updated review, not necessarily an umbrella review.

Best,
Gerta


UNIVERSITÄTSKLINIKUM FREIBURG
Institute for Medical Biometry and Statistics

Dr. Gerta Rücker
Guest Scientist

Stefan-Meier-Straße 26 · 79104 Freiburg
gerta.ruecker using uniklinik-freiburg.de

https://www.uniklinik-freiburg.de/imbi-en/employees.html?imbiuser=ruecker

-----Ursprüngliche Nachricht-----
Von: Im via R-sig-meta-analysis <r-sig-meta-analysis using r-project.org> 
Gesendet: Montag, 22. April 2024 15:47
An: r-sig-meta-analysis using r-project.org
Cc: Im <aligners79 using gmail.com>
Betreff: [R-meta] Fwd: Question on Umbrella review and other types

---------- Forwarded message ---------
From: Im <aligners79 using gmail.com>
Date: Mon, Apr 22, 2024 at 12:56 PM
Subject: Question on Umbrella review and other types
To: <r-sig-meta-analysis using r-project.org>



Hello!
 I am planning to do an Umbrella review.

The number of systematic/meta analysis are two. Rest of the studies are 3-4
new studies published after or almost at same time of these two reviews.

My question is can I conduct the Umbrella review ? If not then is there any
other type of review that could be performed ?  I want to include the
previous systematic/meta reviews. I also plan to repeat already performed
meta-analysis. Can I add the meta analysis studies HRs and new studies to
make another meta-analysis ?

Please guide me which review could be the best in this situation.
best regards

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