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Article History

Received: 14 March 2023

Accepted: 21 May 2023

First Online: 20 June 2023

Declarations

:

: <b>Marie Naumann</b> At the time of the study, MN was working as a junior research associate at the Cologne Institute for Health Economics and Clinical Epidemiology (University Hospital of Cologne). With a Masters’ degree in Sociology, MN possesses extensive professional expertise in qualitative social research. Furthermore, MN possesses fundamental practical experience of working on empirical projects relating to various societal topics within the field of qualitative social research.<b>Simon Robin Scharfenberg</b> At the time of the study, SSC was working as a research assistant at the Cologne Institute for Health Economics and Clinical Epidemiology (University Hospital of Cologne).<b>Yana Seleznova</b> At the time of the study, YS was working as a junior research associate at the Cologne Institute for Health Economics and Clinical Epidemiology (University Hospital of Cologne).<b>Bastian Wein</b> At the time of the study, BW was working as a project manager at the Contilia Heart and Vascular Center (Elisabeth-Hospital Essen) and a senior physician at the Cardiovascular Center Oberallgaeu-Kempten.<b>Oliver Bruder</b> At the time of the study, OB was working as a chief physician at the Contilia Heart and Vascular Center (Elisabeth-Hospital Essen) and a lecturer of medicine at the Ruhr University Bochum.<b>Stephanie Stock</b> At the time of the study, SST was working as the Deputy Director of the Cologne Institute for Health Economics and Clinical Epidemiology (University Hospital of Cologne).<b>Dusan Simic</b> At the time of the study, DS was working as a senior research associate at the Cologne Institute for Health Economics and Clinical Epidemiology (University Hospital of Cologne).<b>Benjamin Scheckel</b> At the time of the study, BS was working as a junior research associate at the Cologne Institute for Health Economics and Clinical Epidemiology (University Hospital of Cologne).<b>Dirk Müller</b> At the time of the study, DM was working as a senior research associate at the Cologne Institute for Health Economics and Clinical Epidemiology (University Hospital of Cologne). With a PhD in Health Economics, DM has led several research projects in the field of health services research. He possesses extensive professional expertise regarding methodologies from the quantitative and qualitative paradigm, and his comprehensive practical experience has been gained in the areas of both healthcare-related basic research and applied healthcare research.

: The “ENLIGHT-KHK” study concept received positive approval from the Ethics Committee of the Ärztekammer Nordrhein on 13th December 2018 (submission number: 2018361). All methods were carried out in accordance with relevant guidelines and regulations. Written informed consent for participating as a respondent was obtained from all the participants prior to their interviews.

: Not applicable.

: The authors declare that they have no competing interests.