Pedersen, Line Hjøllund http://orcid.org/0000-0001-7305-098X
Erdmann, Friederike
Aalborg, Gitte Lerche
Hjalgrim, Lisa Lyngsie
Larsen, Hanne Bækgaard
Schmiegelow, Kjeld
Winther, Jeanette Falck
Dalton, Susanne Oksbjerg
Article History
Received: 22 February 2021
Accepted: 30 September 2021
First Online: 14 October 2021
Declarations
:
: No ethics approval nor informed consent were required for this registry-based study in accordance with the Danish Act on Research Ethics Review of Health Research Projects section 14 where it is stated that ‘notification of questionnaire surveys and medical database research projects to the system of research ethics committee system is only required if the project involves human biological material’.Permissions for data linkage were obtained from the Danish Clinical Quality Program – National Clinical Registries (j. no. DBCR-2018-12-13) and the National Board of Health (j. no. 707571) and the project was registered in the Research Registry at the Danish Cancer Society Research Center (2018-DCRC-0053). The data used were accessed remotely on the Danish Cancer Society’s secure platform at Statistics Denmark. The study was performed in accordance with the Declaration of Helsinki.
: Not applicable, since no individual person’s data was used.
: The authors declare no competing interests.