Received: 7 February 2021
Accepted: 3 June 2021
First Online: 1 July 2021
: The authors declare that they have no competing interests.
: The Danish Birth Cohort studies received approval from the Scientific Ethical Review Board (trial numbers, 1895: 95/93 and 95/93 MC; 1905: VF-20040240; 1910: S-20100011) and the Danish Data Protection Agency (1905: 2015-41-3834; 1910: 2016-41-4552).The Danish Birth Cohort studies are prospective studies that collected information of the health of the participants when they turned 100 years. Informed consent was obtained from participants when they were tested. In the case where individuals participated through a proxy responder, the proxy responder provided informed consent. Date of death was obtained from the Danish Civil Registration System.All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.