Funding for this research was provided by:
Bundesministerium für Bildung und Forschung
Bundesministerium für Gesundheit
Ministerium für Innovation, Wissenschaft und Forschung des Landes Nordrhein-Westfalen
Deutsches Diabetes-Zentrum (DDZ)
Received: 10 March 2022
Accepted: 15 April 2022
First Online: 13 May 2022
: This study was performed in line with the principles of the Declaration of Helsinki. Ethical approval was received from the ethics committee of the Heinrich Heine University Düsseldorf in June 2017 (Reference-No: 5540).
: All participants provided written informed consent to participate to the study and publish the data.
: WR reported having received consulting fees for attending educational sessions or advisory boards from AstraZeneca, Boehringer Ingelheim and NovoNordisk and institutional research grants from AstraZeneca and NovoNordisk. ES-J, FK, MT, JR, MBS and OK have no financial disclosures.