Fan Xia, PhD

Most of my past and current research is oriented around causal mediation analysis. A part of my work provides a comprehensive guide to applied statisticians and epidemiologists that can help them navigate the philosophical subtleties and abundant methodology in causal inference. Another part of my work is to develop methodologies for complex causal mediation structures, including mediation analysis with treatment-induced confounding, mediation analysis with multiple mediation pathways, and mediation analysis for longitudinal data, using rigorous statistical theories for semiparametric inference.
In addition to causal mediation analysis, my research involves causal discovery, which is another important topic in causal inference, and cluster randomized trials with stepped wedge designs, which are related to model-based causal inference with longitudinal data.