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.
Adjusted odds ratios (95% confidence interval [CI]) of low birth weight (LBW), preterm birth (PTB), preterm birth and low birth weight (PT_LBW), and intrauterine growth retardation (IUGR) by three-way interactions of parental education and parental work in Korea from 1995 to 2008
*ORs: Adjusted for infant sex, maternal age, parental age, multiple birth, parity, death of previous children, and year of birth.
