Zheng, Guoqiao http://orcid.org/0000-0003-4337-9017
Faber, Mette Tuxen
Wang, Jiangrong
Baandrup, Louise
Hertzum-Larsen, Rasmus
Sundström, Karin http://orcid.org/0000-0002-6865-0224
Kjær, Susanne K.
Article History
Received: 3 August 2023
Revised: 30 January 2024
Accepted: 30 January 2024
First Online: 12 February 2024
Competing interests
: The authors declare no competing interests.
: The study is based on data from Danish and Swedish health registries with no direct involvement of study participants and thus no ethical approval was needed. For the data from Denmark, the relevant approvals for use of the included register data, which are placed in a project database at Statistics Denmark (project number 704327), were obtained. The Danish Cancer Society is responsible for the data stored at the Danish Cancer Society Research Center’s project database at Statistics Denmark. In agreement with the General Data Protection Regulation, the project is registered in the Danish Cancer Society’s internal list of projects that are dealing with personalized data (Journal numbers 2018-DCRC-0050 and 2019-DCRC-0054). The study was performed in accordance with the Declaration of Helsinki. For the data from Sweden, ethical approval for the study was obtained from the Ethical Review Authority of Sweden. Karolinska Institutet is responsible for the data stored for use in the project.