Lee, Yunhee http://orcid.org/0000-0002-0602-5765
Kim, Inah http://orcid.org/0000-0001-9221-5831
Song, Jaechul http://orcid.org/0000-0003-1265-0337
Hwang, Kyung-Gyun http://orcid.org/0000-0002-8713-660X
Choi, Boyoul http://orcid.org/0000-0003-0115-5736
Hwang, Seung-Sik http://orcid.org/0000-0002-1558-7831
Article History
Received: 26 July 2018
Accepted: 1 July 2019
First Online: 15 July 2019
Ethics approval and consent to participate
: This study used data from the fourth (2007–2009) and fifth (2010, 2012) KNHANES conducted by the Korea Centers for Disease Control and Prevention, with exemption from review (HYI-16-195) by the Institutional Review Board (IRB) at Hanyang University.
: Not applicable.
: The authors declare that they have no competing interests.