Institute of Epidemiology & Health Care


Researchers and Key Collaborators


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
Associate Professor (Emeritus) 
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 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 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