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Article History

Received: 21 July 2021

Accepted: 7 March 2022

First Online: 14 May 2022

Declarations

:

: This study was performed in accordance with the Declaration of Helsinki and was approved by the Ethics Committee of the Medical Faculty of the University of Lübeck (file number: 18–138). The potential study participants received an information sheet describing the purpose and procedure of the study, which included the contact details of the project managers and the data protection measures. Informed consent to participate in the study was obtained. Only those participants who were considered fit to give consent were included in the study. All personal data (questionnaire data) were pseudonymised in the clinic (i.e., provided with ID numbers). The assignment list (ID number and address) was kept strictly separate from the questionnaire file, saved and deleted after the 9-month follow-up and after data control took place. The original documents will be kept in accordance with the Guidelines and Recommendations for Securing Good Epidemiological Practice (GEP) [] for up to 10 years after the end of the study.

: Not applicable.

: The authors declare that they have no competing interests.