Published in Health Affairs, 2016
Recommended citation: Johnson G, Figueroa JF, Zhou X, Orav EJ, Jha AK. (2016). "Recent growth in Medicare Advantage enrollment associated with decreased fee-for-service spending in certain US counties." Health Affairs. 35(9):1707–1715.
Download Paper
Published in Medical Care, 2017
Recommended citation: Figueroa JF, Joynt KE, Zhou X, Orav EJ, Jha AK. (2017). "Safety-net hospitals face more barriers yet use fewer strategies to reduce readmissions." Medical Care. 55(3):229–235.
Download Paper
Published in Healthcare, 2017
Recommended citation: Figueroa JF, Frakt AB, Lyon ZM, Zhou X, Jha AK. (2017). "Characteristics and spending patterns of high cost, non-elderly adults in Massachusetts." Healthcare. 5(4):165–170.
Download Paper
Published in BMJ Quality & Safety, 2018
Recommended citation: Figueroa JF, Feyman Y, Zhou X, Joynt Maddox K. (2018). "Hospital-level care coordination strategies associated with better patient experience." BMJ Quality & Safety. 27(10):844–851.
Download Paper
Published in Annals of Internal Medicine, 2018
Recommended citation: Figueroa JF, Lyon Z, Zhou X, Grabowski DC, Jha AK. (2018). "Persistence and drivers of high-cost status among dual-eligible Medicare and Medicaid beneficiaries: an observational study." Annals of Internal Medicine. 169(8):528–534.
Download Paper
Published in Health Affairs, 2019
Recommended citation: Figueroa JF, Zhou X, Jha AK. (2019). "Characteristics and spending patterns of persistently high-cost Medicare patients." Health Affairs. 38(1):107–114.
Download Paper
Published in Addiction, 2020
Recommended citation: Burke LG, Zhou X, Boyle KL, Orav EJ, Bernson D, Hood ME, Land T, Bharel M, Frakt AB. (2020). "Trends in opioid use disorder and overdose among opioid-naive individuals receiving an opioid prescription in Massachusetts from 2011 to 2014." Addiction. 115(3):493–504.
Download Paper
Published in Scientific Reports, 2020
Open access. Functional data analysis of epidemic curves.
Recommended citation: Carroll C, Bhattacharjee S, Chen Y, Dubey P, Fan J, Gajardo Á, Zhou X, Müller HG, Wang JL. (2020). "Time dynamics of COVID-19." Scientific Reports. 10:21040.
Download Paper
Published in Clinical Lung Cancer, 2022
Recommended citation: Aldin MK, Qi L, Zhou X, Kahn LA, Daly ME. (2022). "Detection of second primary lung cancers on surveillance imaging following stereotactic ablative radiotherapy for non-small cell lung cancer." Clinical Lung Cancer. 23(3):e222–e230.
Download Paper
Published in PLOS ONE, 2022
Open access. Functional data analysis of ideological trajectories from the justices’ votes.
Recommended citation: Zhou X, Müller HG. (2022). "The dynamics of ideology drift among US Supreme Court justices: a functional data analysis." PLOS ONE. 17(7):e0269598.
Download Paper
Published in Scientific Reports, 2022
Open access.
Recommended citation: Avila-Herrera A, Thissen JB, Mulakken N, Schobel SA, Morrison MD, Zhou X, Grey SF, Lisboa FA, Unselt D, Mabery S, et al. (2022). "Metagenomic features of bioburden serve as outcome indicators in combat extremity wounds." Scientific Reports. 12:13816.
Download Paper
Published in Journal of Biopharmaceutical Statistics, 2024
Estimators for the treatment effect after participants on the control arm later receive the treatment, using external controls.
Recommended citation: Zhou X, Pang H, Drake C, Burger HU, Zhu J. (2024). "Estimating treatment effect in randomized trial after control to treatment crossover using external controls." Journal of Biopharmaceutical Statistics. 34(6):893–921.
Download Paper
Published in Journal of the Royal Statistical Society Series A, 2025
Methods for using data from outside a trial as a comparison group when the outcome is measured over time.
Recommended citation: Zhou X, Zhu J, Drake C, Pang H. (2025). "Causal estimators for incorporating external controls in randomized trials with longitudinal outcomes." Journal of the Royal Statistical Society Series A: Statistics in Society. 188(3):791–818.
Download Paper
Published:
Oral presentation.
Published:
Oral presentation.
Instructor, Department of Statistics, University of California, Davis, 2021
Fall 2021.
Instructor, Department of Statistics, University of California, Davis, 2022
Winter 2022.
Instructor, Department of Statistics, University of California, Davis, 2023
Winter 2023.
Instructor, Department of Statistics, University of California, Davis, 2023
Summer 2023.
Instructor, Department of Statistics, University of California, Davis, 2025
Fall 2025.
Instructor, Department of Statistics, University of California, Davis, 2025
Fall 2025.
Co-instructor, Graduate Group of Epidemiology, University of California, Davis, 2026
Fall 2026.