A Practical Guide to Conducting Dose-Response Meta-Analyses in Epidemiology

Dose-response relationships between continuous risk factors and disease outcomes are necessary for understanding the risks related to different levels of exposure. Dose-response risk curves can lead to more targeted public health messaging, prevention efforts, and policy implementation. Meta-analyse...

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Bibliographic Details
Main Authors: Huan Jiang, Jürgen Rehm, Charlotte Probst, Alexander Tran, Shannon Lange, Laura Llamosas-Falcón
Format: Article
Language:English
Published: PsychOpen GOLD/ Leibniz Institute for Psychology 2025-06-01
Series:Methodology
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Online Access:https://doi.org/10.5964/meth.14733
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Summary:Dose-response relationships between continuous risk factors and disease outcomes are necessary for understanding the risks related to different levels of exposure. Dose-response risk curves can lead to more targeted public health messaging, prevention efforts, and policy implementation. Meta-analyses are often used to combine statistical results from different studies and can be used to model dose-response relationships. However, several challenges are encountered when performing dose-response meta-analysis, such as having heterogeneous reference categories, inconsistent measures of risk, and determining the most accurate shape of the curve. In this paper, we propose a three-step process for estimating dose-response relationships via meta-analysis, which involves: 1) harmonizing the measures of risk, 2) homogenizing the reference category, and 3) selecting meta-regression models. We use data obtained from a systematic review on the dose-response relationship between alcohol consumption and the risk of chronic liver disease to provide an example of the proposed process.
ISSN:1614-2241