• Aminu Bello, Ben Vandermeer, Natasha Wiebe, Amit X Garg, and Marcello Tonelli.
• Division of Nephrology, Department of Medicine, University of Alberta, Edmonton, AB, Canada.
• Methods Mol. Biol. 2021 Jan 1; 2249: 405-428.

AbstractThe number of studies published in the biomedical literature has dramatically increased over the last few decades. This massive proliferation of literature makes clinical medicine increasingly complex, and information from multiple studies is often needed to inform a particular clinical decision. However, available studies often vary in their design, methodological quality, and population studied, and may define the research question of interest quite differently. This can make it challenging to synthesize the conclusions of multiple studies. In addition, since even highly cited trials may be challenged over time, clinical decision-making requires ongoing reconciliation of studies which provide different answers to the same question. Because it is often impractical for readers to track down and review all the primary studies, systematic reviews and meta-analyses are an important source of evidence on the diagnosis, prognosis and treatment of any given disease. This chapter summarizes methods for conducting and reading systematic reviews and meta-analyses, as well as describes potential advantages and disadvantages of these publications.

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