Hannah Jongsma

Hannah Jongsma

I am a PhD-student based at the University of Cambridge.

I’m supervised by Professor Peter Jones (Cambridge) and Dr James Kirkbride (UCL). My PhD research involves analysing data from the EU-GEI study, focussing on computing incidence rates and analysing data from the case-control arm of the study on ethnicity and incidence. For more details, see below.

Learn more about my research

My PhD focusses on analysis data from the EU-GEI study. This is a multi-centre European study, aiming to investigate the gene-environment interactions in schizophrenia and other psychotic disorders. This study is divided up into eleven different Work Packages. My PhD is part of WP 2: Functional Enviromics. The aim of this WP is to investigate the relationship between exposure to hypothesised environmental risk factors and the onset of schizophrenia spectrum disorders, using both an incidence and a case-control study. It includes data from Brazil, England, France, Italy, The Netherlands and Spain.

My PhD consists of three main parts:

  • A systematic review and meta-analysis of the incidence of psychotic disorders across the countries associated with WP2, as well as a meta-regression investigating the variance in those incidence rates.
  • Computation of incidence rates based on the data collected in WP2.
  • Analysis of case-control data, focussing on unpacking the relationship between ethnic minority background and higher incidence of psychotic disorders.

I am also interested in the wider public health implications of my work, as well as in the philosophical and ethical questions it raises.


I have previously been employed by the British Medical Association as a pensions officer and policy analyst (within the Health Policy and Economic Research Unit).


After doing an undergraduate degree in Liberal Arts and Science at University College Roosevelt (the Netherlands), I completed an MSc in Philosophy and Public Policy at the London School of Economics. My MSc dissertation focussed on the ethics of care for those suffering with dementia, and was supervised by Dr Alex Voorhoeve.

I have also completed a Masters in Public Health (MPH) at King’s College London, graduating with a distinction overall and a distinction for my dissertation.  My dissertation was a cross-sectional analysis of factors influencing GP antibiotic prescribing, using a database covering almost 8,000 practices across England. This dissertation was supervised by Dr Mark Ashworth, and a paper based on it has been accepted for publication by the British Journal of General Practice.


Ashworth, M; White, P; Jongsma, H; Schofield, P; Armstrong D. (Forthcoming) “Antibiotic prescribing and patient satisfaction in primary care: a cross-sectional analysis of national patient survey data and prescribing data in England”. British Journal of General Practice.


Fearnside Fund Travel Grant

Huygens Scholarship

Contact me


E-mail: hej33@cam.ac.uk

Tel: 01223 336963


Division of Psychiatry, UCL

6th Floor, Maple House

149 Tottenham Court Road