Choi, Min-Jung
Park, Yong Gyu
Kim, Yang Hyun
Cho, Kyung Hwan
Nam, Ga Eun
Article History
Received: 20 December 2018
Accepted: 14 April 2020
First Online: 1 May 2020
Ethics approval and consent to participate
: This study was approved by the institutional review board of the Catholic University of Korea, St. Mary’s Hospital in Seoul (approval number: KC18ZESI0062). The research ethics committees of the Korea Centers for Disease Control and Prevention (KCDC) approved the survey protocol, and written consent was provided by all participants. The KNHANES data are de-identified and publicly available.
: Not applicable.
: The authors declare that they have no competing interests.