van Baal, Katharina http://orcid.org/0000-0002-2425-3710
Schrader, Sophie
Schneider, Nils
Wiese, Birgitt
Stahmeyer, Jona Theodor
Eberhard, Sveja
Geyer, Siegfried
Stiel, Stephanie
Afshar, Kambiz
Funding for this research was provided by:
Innovation Fund of the Federal Joint Committee (01VSF17028)
Article History
Received: 16 July 2020
Accepted: 29 October 2020
First Online: 8 December 2020
Change Date: 26 January 2021
Change Type: Update
Change Details: The note "Open Access funding enabled and organized by Projekt DEAL" was added to the Funding declaration.
Ethics approval and consent to participate
: Ethics approval was given by the ethics committee of the Hannover Medical School on 16 August 2018 for the main OPAL study (Registration N° 8038_BO_K_2018).The present study was based on routinely collected data, for which the use for scientific purposes is regulated by federal law. The data protection officer of the statutory local health care fund of Lower Saxony (AOK-N) gave permission for its use. All data were anonymised.
: Not applicable.
: The authors declare that they have no competing interests.