Kim, Mihye
Lee, Sook-Hyun
Park, Kyoung Sun
Kim, Eun-Jung
Yeo, Sujung
Ha, In-Hyuk
Article History
Received: 8 June 2021
Accepted: 11 October 2021
First Online: 21 October 2021
Declarations
:
: The KNHANES V, VI, and VII were conducted by the Korea Centers for Disease Control and Prevention (KCDC). All survey protocols were approved by the institutional review board of the KCDC (approval numbers: 2013-07CON-03-4C, 2013-12EXP-03-5C, and 2015-01-02-6C). Informed consent was obtained from all participants when the surveys were conducted. Institutional review board approval was not required for the present study, as it did not deal with sensitive information and accessed only publicly available data from the KNHANES (JASENG IRB File No. 2019–03-006).
: Not applicable.
: The authors declare that they have no competing interests.