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Mediation analysis methods used in observational research: a scoping review and recommendations
Background Mediation analysis methodology underwent many advancements throughout the years, with the most recent and important advancement being the development of causal mediation analysis based on the counterfactual framework.
Judith J. M. Rijnhart +5 more
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Sensitivity Analysis in Nonrandomized Longitudinal Mediation Analysis
Mediation analysis relies on an untestable assumption of the no omitted confounders, which posits that an omitted variable that confounds the relationships between the antecedent, mediator, and outcome variables cannot exist.
Davood Tofighi
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Causal Mediation Analysis with Multiple Mediators [PDF]
Summary In diverse fields of empirical research—including many in the biological sciences—attempts are made to decompose the effect of an exposure on an outcome into its effects via a number of different pathways. For example, we may wish to separate the effect of heavy alcohol consumption on systolic blood pressure (SBP) into effects ...
Daniel, RM +3 more
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Mediation analysis investigates the intermediate mechanism through which an exposure exerts its influence on the outcome of interest. Mediation analysis is becoming increasingly popular in high-throughput genomics studies where a common goal is to ...
Ping Zeng, Zhonghe Shao, Xiang Zhou
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Generalized Causal Mediation Analysis [PDF]
The goal of mediation analysis is to assess direct and indirect effects of a treatment or exposure on an outcome. More generally, we may be interested in the context of a causal model as characterized by a directed acyclic graph (DAG), where mediation via a specific path from exposure to outcome may involve an arbitrary number of links (or "stages ...
Albert, Jeffrey M., Nelson, Suchitra
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AbstractMediation occurs when a third variable, referred to as a mediator construct, intervenes between two other directly related constructs. More precisely, a change in the exogenous construct results in a change of the mediator construct, which in turn changes the endogenous construct. The mediator analysis evaluates the factors related to the cause–
Joseph F. Hair +5 more
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Flexible Mediation Analysis With Multiple Mediators [PDF]
The advent of counterfactual-based mediation analysis has triggered enormous progress on how, and under what assumptions, one may disentangle path-specific effects upon combining arbitrary (possibly nonlinear) models for mediator and outcome. However, current developments have largely focused on single mediators because required identification ...
Johan, Steen +3 more
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Priming congruence and COVID-19 vaccination intention: a mediation analysis
Background This study took place at the height of the fifth wave of COVID-19 in France, coinciding with stigmatizing communication toward the unvaccinated.
Lubomir Lamy +3 more
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Background: High dimensional mediation analysis is frequently conducted to explore the role of epigenetic modifiers between exposure and health outcome.
Fangyao Chen +7 more
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A computational description of simple mediation analysis [PDF]
Simple mediation analysis is an increasingly popular statistical analysis in psychology and in other social sciences. However, there is very few detailed account of the computations within the model.
Caron, Pier-Olivier, Valois, Philippe
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