1. Institute for Biometrics and Epidemiology German Diabetes Center (DDZ) Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf Düsseldorf Germany
2. German Center for Diabetes Research (DZD) Partner Düsseldorf München‐Neuherberg Germany
3. Institute for Health Service Research and Health Economics German Diabetes Center (DDZ) Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf Düsseldorf Germany
4. Institute for Health Service Research and Health Economics Medical Faculty Heinrich Heine University Düsseldorf Düsseldorf Germany
5. Centre for Health and Society Medical Faculty and University Hospital Düsseldorf Heinrich Heine University Düsseldorf Düsseldorf Germany
6. Institute for Clinical Diabetology German Diabetes Center (DDZ) Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf Düsseldorf Germany
7. Department of Internal Medicine I and Clinical Chemistry Heidelberg University Hospital Heidelberg Germany
8. Department of Internal Medicine and Gastroenterology Niels Stensen Hospitals Franziskus Hospital Harderberg Georgsmarienhütte Germany
9. Department of Endocrinology and Diabetology Medical Faculty and University Hospital Heinrich Heine University Düsseldorf Düsseldorf Germany
10. University of Cambridge Wellcome‐MRC Institute of Metabolic Science Cambridge UK
11. Medical Faculty Heinrich Heine University Düsseldorf Germany