1. 1Leicester Real World Evidence Unit, Leicester Diabetes Research Centre, Leicester General Hospital, University of Leicester, Leicester, U.K.
2. 2Leicester Diabetes Research Centre, Leicester General Hospital, University of Leicester, Leicester, U.K.
3. 3Inequalities in Cancer Outcomes Network Group, Department of Noncommunicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, U.K.
4. 4Leicester Cancer Research Centre, Leicester Royal Infirmary, University of Leicester, Leicester, U.K.
5. 5National Institute for Health and Care Research, Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust and University of Leicester, Leicester, U.K.
6. 6National Institute for Health and Care Research, Applied Research Collaboration East Midlands, University of Leicester, Leicester, U.K.