Jiayao Lei

Jiayao Lei

Assistant Professor
Visiting address: ,
Postal address: C8 Medicinsk epidemiologi och biostatistik, C8 MEB II Clements, 171 77 Stockholm

About me

  • I am an assistant professor in epidemiology at MEB.

    Current team members:
    Eva Meglic (PhD student, 2024-)

    Yunyang Deng (Postdoc, 2024-)

    Ana Martina Astorga Alsina (Master student)
    Shiqiang Wu (Master student)


  • My research lies in preventive medicine, primarily focusing on cancer and vaccine epidemiology. I use methodologies that employ observational designs leveraging electronic health records as well as modeling techniques to support preventive programs. The research output is pivotal in advancing the global effort in controlling human papillomavirus (HPV)-related diseases, particularly aligning with the WHO's global strategy to eliminate cervical cancer as a public health problem.

    The main areas of my research contain:
    1) An extensive evaluation of HPV vaccination in Sweden, encompassing both girls-only and gender-neutral vaccination programs. This includes studying the vaccine's effectiveness and its impact on reducing HPV-related diseases in the population.
    2) Investigating the relationship between HPV, HPV vaccination, and reproductive outcomes.
    3) Developing risk prediction models for cervical diseases, which incorporate screening trajectories and other risk factors.
    4) Forecast the impact of HPV vaccination on the six types of HPV-associated cancers

    My research work is supported by the Swedish Research Council (VR), Swedish Research Council for Health, Working Life, and Welfare (Forte), Karolinska Institutet Strategic Research Area in Epidemiology and Biostatistics (SFOepi), and Karolinska Institutet Research Foundation.


  • 2023 Clinical Cancer Epidemiology, King's College London and Karolinska Institutet
    2022 -2023 Introduction to Epidemiology, Skandinaviska Kiropraktorhöskolan
    2021 Study design, The London School of Hygiene and Tropical Medicine
    2018 Biostatistics I, Karolinska Institutet


All other publications



  • Assistant Professor, Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 2023-2029

Degrees and Education

  • Degree Of Doctor Of Philosophy, Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 2020
  • Degree Of Master Of Medical Science 120 Credits, Karolinska Institutet, 2015

News from KI

Events from KI