Conducting umbrella reviews

Lazaros Belbasis; Vanesa Bellou; John P A Ioannidis

doi:10.1136/bmjmed-2021-000071

Conducting umbrella reviews

BMJ Med. 2022 Nov 22;1(1):e000071. doi: 10.1136/bmjmed-2021-000071. eCollection 2022.

Authors

Lazaros Belbasis¹, Vanesa Bellou², John P A Ioannidis^{1

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Affiliations

¹ Meta-Research Innovation Center Berlin, QUEST Center, Berlin Institute of Health, Charité Universitätsmedizin Berlin, Berlin, Germany.
² Department of Hygiene and Epidemiology, University of Ioannina Medical School, Ioannina, Greece.
³ Meta-Research Innovation Center at Stanford, Stanford University, Stanford, CA, USA.
⁴ Department of Medicine, Stanford University Medical School, Stanford, CA, USA.
⁵ Department of Epidemiology and Population Health, Stanford University Medical School, Stanford, CA, USA.
⁶ Department of Health Research and Policy, Stanford University Medical School, Stanford, CA, USA.
⁷ Department of Biomedical Data Science, Stanford University Medical School, Stanford, CA, USA.

Abstract

In this article, Lazaros Belbasis and colleagues explain the rationale for umbrella reviews and the key steps involved in conducting an umbrella review, using a working example.

Keywords: research design; statistics.