Received: 24 July 2021
Accepted: 16 December 2021
First Online: 5 January 2022
: The Korea Centers for Disease Control and Prevention institutional review board reviewed and approved the KNHANES VII surveys (2018-01-03-P-A) in accordance with the Declaration of Helsinki. Informed consent form was obtained prior to data collection.
: Not applicable.
: The authors declare no conflict of interest.