Funding for this research was provided by:
Kræftens Bekæmpelse (R167-A11045-17-S2)
Received: 15 June 2021
Accepted: 26 August 2021
First Online: 30 September 2021
: We managed all data according to the World Medical Association’s Declaration of Helsinki, and the study was approved by the Danish Data Protection Agency (AU 2016-051-000001, #994), the Regional Ethics Committee (Record no. 1-10-72-4-18), and the Danish Breast Cancer Group (DBCG-2019-08-20). The use of registry-based data for scientific studies in Denmark requires no consent from the participants.
: Not applicable.
: Department of Clinical Epidemiology, Aarhus University Hospital and Aarhus University, receives funding for other studies from the European Medicines Agency and companies in the form of research grants to (and administered by) Aarhus University. None of these studies have any relation to the present study.