A Review of Methods for Research Synthesis

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Main Authors: Pär Villner, Matteo Bottai
Format: Artículo Open Access
Published: Wiley 2025
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author Pär Villner
Matteo Bottai
author_facet Pär Villner
Matteo Bottai
Pär Villner
Matteo Bottai
collection Wiley Open Access
contents A Review of Methods for Research Synthesis Pär Villner Matteo Bottai Statistics in Medicine ABSTRACT Meta‐analysis consists of a wide range of methods for summarizing existing research, often by aggregating summary statistics. The dominant methods are the fixed effect and the random effects models, which assume that all studies included in a meta‐analysis are similar. In many scenarios, the available studies differ in important ways, for example, in terms of research design and sample population. To handle this heterogeneity, more advanced methods are required. In this article, we review some of these methods that have been proposed in the past decades: hierarchical models, bias adjustment and quality weighting methods, Bayesian methods, and decision‐centered meta‐analysis. We aim to describe the theoretical rationale behind the methods and to give examples of applications. Each method has advantages and limitations, and we consider ways of combining methods. 10.1002/sim.70314 http://creativecommons.org/licenses/by/4.0/
doi_str_mv 10.1002/sim.70314
format Artículo Open Access
id wiley_oa_10_1002_sim_70314
institution Wiley Open Access
license_str_mv http://creativecommons.org/licenses/by/4.0/
publishDate 2025
publisher Wiley
record_format wiley_oa
spellingShingle A Review of Methods for Research Synthesis
Pär Villner
Matteo Bottai
Statistics in Medicine
A Review of Methods for Research Synthesis Pär Villner Matteo Bottai Statistics in Medicine ABSTRACT Meta‐analysis consists of a wide range of methods for summarizing existing research, often by aggregating summary statistics. The dominant methods are the fixed effect and the random effects models, which assume that all studies included in a meta‐analysis are similar. In many scenarios, the available studies differ in important ways, for example, in terms of research design and sample population. To handle this heterogeneity, more advanced methods are required. In this article, we review some of these methods that have been proposed in the past decades: hierarchical models, bias adjustment and quality weighting methods, Bayesian methods, and decision‐centered meta‐analysis. We aim to describe the theoretical rationale behind the methods and to give examples of applications. Each method has advantages and limitations, and we consider ways of combining methods. 10.1002/sim.70314 http://creativecommons.org/licenses/by/4.0/
title A Review of Methods for Research Synthesis
topic Statistics in Medicine
url https://onlinelibrary.wiley.com/doi/10.1002/sim.70314