Table 1.
Characteristics of Korean adults included in this study - KNHANES 2005, 2007, 2008, 2009
KNHANES: Korean National Health and Nutrition Examination Survey, CI: confidence interval.
*Total number excluded the pregnant and age below 20.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.