Publications

1. Causal estimators for incorporating external controls in randomized trials with longitudinal outcomes

   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.
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2. Estimating treatment effect in randomized trial after control to treatment crossover using external controls

   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.
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3. The dynamics of ideology drift among US Supreme Court justices: a functional data analysis

   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.
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4. Metagenomic features of bioburden serve as outcome indicators in combat extremity wounds

   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.
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5. Detection of second primary lung cancers on surveillance imaging following stereotactic ablative radiotherapy for non-small cell lung cancer

   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.
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6. Time dynamics of COVID-19

   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.
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7. Trends in opioid use disorder and overdose among opioid-naive individuals receiving an opioid prescription in Massachusetts from 2011 to 2014

   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.
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8. Characteristics and spending patterns of persistently high-cost Medicare patients

   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.
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9. Persistence and drivers of high-cost status among dual-eligible Medicare and Medicaid beneficiaries

   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.
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10. Hospital-level care coordination strategies associated with better patient experience

    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.
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11. Characteristics and spending patterns of high cost, non-elderly adults in Massachusetts

    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.
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12. Safety-net hospitals face more barriers yet use fewer strategies to reduce readmissions

    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.
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13. Recent growth in Medicare Advantage enrollment associated with decreased fee-for-service spending in certain US counties

    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.
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