For example, to clarify whether or not having more options makes it harder for people to settle on any one item, a meta-analysis of over 53 conflicting studies on the phenomenon was conducted.

In this tutorial, we illustrate the procedures for conducting a network meta-analysis for binary outcomes data in the Bayesian framework using example data. Our goal is to describe the workflow of ...

and present a simulation study and the example of multiple sclerosis from the Global Burden of Disease 2010 project. We conclude that the double arcsine transformation is preferred over the logit, and ...

Objective Many published meta-analyses are underpowered. We explored the role of trial sequential analysis (TSA) in assessing the reliability of conclusions in underpowered meta-analyses. Methods We ...

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There were relatively small sample sizes across many of the randomised controlled trials and over a third of the included studies did not provide adequate data for inclusion in the main meta-analysis.

To address the issue of setting new trial findings in the context of previous research, we suggest including in the trial’s Discussion section a statement such as: A recent systematic review found ...