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.
Mortality differentials (measured by adjusted relative risks) according to education, occupational class, and equivalized household income: Mortality follow-up of 1998 and 2001 Korea National Health and Nutrition Examination Survey data. Source: Adapted from reference 15.
