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.
Relative index of inequality (95% confidence intervals) in age-stratified mortality (25-44 yr and 45-64 yr) from four female cancers from 2001 to 2011 according to educational level in Korean women
*Statistically significant (P value≤0.05), assessed by the Poisson regression analysis.
