Funding for this research was provided by:
Deutsche Diabetes Gesellschaft (DDG)
Deutsches Forschungszentrum für Gesundheit und Umwelt, Helmholtz Zentrum München
German Research Foundation (DFG)
German Center for Diabetes Research e.V. (DZD e.V.)
Clinical Cooperation Group Diabetes, Ludwig-Maximilians-University Munich and Helmholtz Zentrum München
German Diabetes Center (DDZ)
Virtual Institute of Diabetes Research (Helmholtz Zentrum München)
Received: 23 June 2020
Accepted: 12 September 2020
First Online: 16 October 2020
Ethics approval and consent to participate
: The KORA F4/FF4 study was approved by the local authorities and carried out in accordance with the Declaration of Helsinki. The ethics approval number is EC No. 06068. All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.