Received: 1 December 2021
Accepted: 7 July 2022
First Online: 11 July 2022
: The national survey was conducted as an anonymous quality assurance project. According to the joint body of the Norwegian Regional Committees for Medical and Health Research Ethics, research approval is not required for quality assurance projects. The Norwegian Social Science Data Services states that anonymous projects are not subject to notification. The NIPH Data Protection Officer recommended the approval of the quality assurance study, and it was formally approved by the research director of the NIPH healthcare services division. Patients were informed that participation was voluntary and their anonymity was assured. Vulnerable patients were protected by permitting the responsible professional at the institution to exclude individual patients for special ethical reasons, in line with the Declaration of Helsinki. Returning the completed questionnaire constituted patient consent, which is the standard procedure in all patient-experience surveys conducted by the Norwegian Institute of Public Health.
: Not applicable.
: The authors declare that they have no competing interests.