Received: 14 November 2019
Accepted: 30 August 2020
First Online: 11 September 2020
Ethics approval and consent to participate
: This article does not contain any studies with human participants or animals performed by any of the authors. Informed consent is not applicable as the study was conducted with routine data.The analysis was performed within the framework of a standing agreement between AOKN and the Medical Sociology Unit at Hanover Medical School. The pseudonymization of the data is performed by the AOKN. The use of this sort of data for scientific purposes is regulated by federal law in Germany, and the data protection officer of AOKN has approved its use.
: Not applicable.
: JT received funding from AOKN. JE received funding from the Deutsche Forschungsgemeinschaft (German Research Funding Association). Both organizations did not affect the study design or writing the manuscript.