Institute of Epidemiology & Health Care


Researchers and Key Collaborators


Dr Sara Ahmadi-Abhari
Research Associate
Email: s.ahmadi-abhari@ucl.ac.uk
Upon completion of Sara's PhD in Epidemiology at University of Cambridge, she joined the Whitehall II study in February 2014 as a Post-doc research associate.

She works on the association between longitudinal trajectories of biologic risk factors (such as pulse wave velocity) and ageing outcomes such as cardiovascular diseases, cognitive and functional impairment, and mortality
Sara Ahmadi-Abhari
Dr Severine Sabia
Research Associate
Email: s.sabia@ucl.ac.uk
Severine's research is on the impact of clustering of health behaviours - smoking, alcohol consumption, dietary behaviour and physical activity - on cognitive and physical ageing.

She is also interested in the measure of physical activity by accelerometer and its association with health. Her longstanding interests are in methods and statistical analysis such as longitudinal analyses with repeated data and missing data.
Severine Sabia
Mr Martin Shipley
Senior Lecturer
Email: martin.shipley@ucl.ac.uk
Interests are in statistical methodology for the analysis of cohort studies. These include the analysis of repeated exposures on event outcomes and the estimation of risk factor trajectories before and after specified events.
Martin Shipley
Dr Adam Tabak
Clinical Research Associate
Email: a.tabak@ucl.ac.uk
Dr Tabák holds a medical degree and a PhD in diabetes epidemiology from Semmelweis University in Hungary. He currently works as an assistant professor and head of Diabetes Unit at the same institution and as a part-time clinical research associate at UCL.

His research interests include the risk factors and consequences of gestational diabetes mellitus. His research in the Whitehall study focuses on the natural history of diabetes using the repeated measures available in this database. His speciality is the description of risk factor trajectories before and after the diagnosis of diabetes mellitus.
Adam Tabak

Key Collaborators

Dr Jessica Abell
Research Associate
Email: jessica.abell@ucl.ac.uk
Jessica's primary research focus is investigating health and well-being in later life. She is currently working on a project funded by the Dunhill Medical Trust examining midlife sleep patterns, stress and functional health in older people.

Jessica completed her PhD at Imperial College London. This examined associations between marital status and quality of life in early old age, using the Survey of Health and Ageing in Europe (SHARE) and ELSA.  
Jessica Abell
Dr Tasnime Akbaraly
Senior Researcher, INSERM
Honorary Staff, UCL
Email: tasnime.akbaraly@inserm.fr
Tasnime is an epidemiologist with a biochemistry background. Tasnime joined the Whitehall II team in 2007. Her research focuses on the role of diet and nutrition in mental health and aging outcomes. She currently works as a permanent researcher at the French National Institute of Health and Medical Research (INSERM) and is still actively carrying out nutritional epidemiology projects in the Whitehall II Study.
Tasnime Akbaraly
Dr Steven Bell
Research Associate
Email: scb81@medschl.cam.ac.uk
Steven's primary research interest is in the public health impact of alcohol consumption - particularly from a life course perspective.

He is currently examining the determinants of changes in drinking and consequences of particular longitudinal patterns of alcohol intake in relation to multiple health outcomes in several prospective cohort studies.

Specific outcomes of interest include a range of cardiovascular diseases (and surrogate markers of cardiovascular health, e.g. blood pressure, lipids, etc.) and mental health.
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Dr Jane Ferrie
Honorary Staff
Email: j.ferrie@ucl.ac.uk
Jane was employed on the Whitehall II study from 1992 until 2011 when she left to become the Academic Editor of the International Journal of Epidemiology.

Having been awarded an honorary position in the department, she is still actively involved in writing papers using the Whitehall II data on topics including the labour market, inequalities in health, and sleep epidemiology.
Jane Ferrie
Dr Dara O'Neill
Research Associate
I am currently undertaking research into the relationship between alcohol consumption and cardiovascular risk, with a particular focus on consumption patterns across the life-course.

Prior to joining the Whitehall II Study in October 2015, I completed a PhD at the University of Surrey, after which I worked for a number of years at the National Institute of Cardiovascular Outcomes Research. During this time, I explored care practices and patient outcomes across cardiovascular treatment centres in the UK.
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