Katsiferis, Alexandros
Nielsen, Pernille Yde
Jensen, Majken K.
Westendorp, Rudi G. J.
Article History
Received: 3 September 2021
Accepted: 28 March 2022
First Online: 8 April 2022
Declarations
:
: All methods were performed in accordance with the relevant guidelines and regulations. Danish legislation allows for register-based research of this type to be conducted without the consent of participants and without ethical committee approval. The study was conducted according to the rules of the Danish Data Protection Agency. All data was held at Statistics Denmark, which is the Danish national statistical institution.
: Not applicable.
: The authors declare that they do not have any competing interests.