
Dr Venexia Walker
MMath, PhD
Current positions
Senior Lecturer
Bristol Medical School (PHS)
Contact
Press and media
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Research interests
I am an epidemiologist at the University of Bristol Medical Research Council Integrative Epidemiology Unit, UK and the University of Pennsylvania Perelman School of Medicine, USA. My research covers causal inference using electronic health record data and Mendelian randomization, particularly for the study of drug effects. Since late 2020, I have been conducting COVID-19 research in national secure data environments that provide access to population-level electronic health record data. I also work closely with the Damrauer lab at the University of Pennsylvania on projects using Mendelian randomization in the Million Veteran Program data.
Projects and supervisions
Thesis supervisions
Publications
Selected publications
01/12/2017Mendelian randomization
International Journal of Epidemiology
Phenome-wide Mendelian randomization mapping the influence of the plasma proteome on complex diseases
Nature Genetics
Recent publications
10/03/2025Impact of COVID-19 pandemic on rates of congenital heart disease procedures among children
Open Heart
Impact of COVID-19 pandemic on rates of congenital heart disease procedures among children
Open Heart
Risks of major arterial and venous thrombotic diseases after hospitalisation for influenza, pneumonia, and COVID-19
Thrombosis Research
Cohort study of cardiovascular safety of different COVID-19 vaccination doses among 46 million adults in England
Nature
COVID-19 and Mental Illnesses in Vaccinated and Unvaccinated People
JAMA Psychiatry
Thesis
New uses for old drugs
Supervisors
Award date
13/09/2019