Publications

2026

1. arXiv

   

   Inference for Causal Path-Specific Effects in Longitudinal Studies with Repeated Treatments and Multiple Mediators

   Xiaxian Ou, Xinwei He, and Razieh Nabi

   arXiv preprint arXiv:2610.34349, Oct 2026

   DOI Bib PDF

   @article{ou2026longitudinal,
     title = {Inference for Causal Path-Specific Effects in Longitudinal Studies with Repeated Treatments and Multiple Mediators},
     author = {Ou, Xiaxian and He, Xinwei and Nabi, Razieh},
     journal = {arXiv preprint arXiv:2610.34349},
     year = {2026},
     month = oct,
     doi = {10.48550/arXiv.2610.34349},
     url = {https://arxiv.org/abs/2610.34349},
   }

2. UAI

   

   Coarsening Bias from Variable Discretization in Causal Functionals

   Xiaxian Ou and Razieh Nabi

   In Proceedings of the 42nd Conference on Uncertainty in Artificial Intelligence, 2026

   PMLR Bib PDF Slides

   @inproceedings{ou2026coarsening,
     title = {Coarsening Bias from Variable Discretization in Causal Functionals},
     author = {Ou, Xiaxian and Nabi, Razieh},
     booktitle = {Proceedings of the 42nd Conference on Uncertainty in Artificial Intelligence},
     series = {Proceedings of Machine Learning Research},
     volume = {337},
     pages = {5138--5167},
     year = {2026},
     url = {https://proceedings.mlr.press/v337/ou26a.html},
   }

3. Stat. Med.

   

   Assessing Racial Disparities in Healthcare Expenditures via Mediator Distribution Shifts

   Xiaxian Ou, Xinwei He, David Benkeser, and Razieh Nabi

   Statistics in Medicine, 2026

   DOI Bib PDF Poster Slides

   @article{ou2026disparities,
     title = {Assessing Racial Disparities in Healthcare Expenditures via Mediator Distribution Shifts},
     author = {Ou, Xiaxian and He, Xinwei and Benkeser, David and Nabi, Razieh},
     journal = {Statistics in Medicine},
     volume = {45},
     number = {13--14},
     pages = {e70606},
     year = {2026},
     doi = {10.1002/sim.70606},
     url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/sim.70606},
   }

2023

1. Cancers

   

   Prognostic Factors Analysis of Metastatic Recurrence in Cervical Carcinoma Patients Treated with Definitive Radiotherapy: A Retrospective Study Using Mixture Cure Model

   Xiaxian Ou, Jing You, Baosheng Liang, Xiaofan Li, Jiangjie Zhou, Fengyu Wen, Jingyuan Wang, Zhengkun Dong, and Yibao Zhang

   Cancers, 2023

   DOI Bib

   @article{ou2023cervical,
     title = {Prognostic Factors Analysis of Metastatic Recurrence in Cervical Carcinoma Patients Treated with Definitive Radiotherapy: A Retrospective Study Using Mixture Cure Model},
     author = {Ou, Xiaxian and You, Jing and Liang, Baosheng and Li, Xiaofan and Zhou, Jiangjie and Wen, Fengyu and Wang, Jingyuan and Dong, Zhengkun and Zhang, Yibao},
     journal = {Cancers},
     volume = {15},
     number = {11},
     pages = {2913},
     year = {2023},
     doi = {10.3390/cancers15112913},
     url = {https://www.mdpi.com/2072-6694/15/11/2913}
   }