Wirth, Kevin
Näpflin, Markus
Graber, Sereina M.
Blozik, Eva
Article History
Received: 13 July 2021
Accepted: 13 January 2022
First Online: 26 February 2022
Declarations
:
: All data were retrospective, pre-existing, de-identified and anonymized in compliance with Swiss regulations on privacy Law. Since the data used were retrospective, de-identified and anonymized health-related data prior to analysis, this study is not subject to the Swiss Federal Law on human research (Humanforschungsgesetz) [CitationRef removed] and was thus exempted from the local ethics committee approval (ethical committee of the Canton Zurich) and from seeking informed consent of patients.
: Not applicable.
: The authors declare that they have no conflicts of interest. Helsana Group provided support in the form of salaries for authors (KW, MN, SG, EB), without having any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript.