Funding for this research was provided by:
Ministry of Health & Welfare, Republic of Korea (HI20C0867)
Received: 26 March 2021
Accepted: 25 April 2022
First Online: 18 May 2022
: Ethical approval was quickly obtained from the Institution Review Board of Korea Institute for Health and Social Affairs (IRB number 2020–05) in February 2020, since the Korea Health Panel is secondary data that does not contain any private information, available as a public domain.
: Not applicable.
: The authors declare that they have no competing interests.