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Journal of Biometrics & Biostatistics

ISSN: 2155-6180

Open Access

Qingzhao Yu


Tanzania

Publications
  • Research Article
    General Multiple Mediation Analysis With an Application to Explore Racial Disparities in Breast Cancer Survival
    Author(s): Qingzhao Yu, Ying Fan and Xiaocheng WuQingzhao Yu, Ying Fan and Xiaocheng Wu

    Mediation refers to the effect transmitted by mediators that intervenes in the relationship between an exposure and a response variable. Mediation analysis has been broadly studied in many fields. However, it remains a challenge for researchers to differentiate individual effect from multiple mediators. This paper proposes general definitions of mediation effects that are consistent for all different types (categorical or continuous) of response, exposure, or mediation variables. With these definitions, multiple mediators can be considered simultaneously, and the indirect effects carried by individual mediators can be separated from the total effect. Moreover, the derived mediation analysis can be performed with general predictive models. For linear predictive models with continuous mediators, we show that the proposed method is equivalent to the conventional coefficients product meth.. Read More»
    DOI: 10.4172/2155-6180.1000189

    Abstract PDF

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Citations: 3254

Journal of Biometrics & Biostatistics received 3254 citations as per Google Scholar report

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