Figure 2. Risk of Adverse Birth Outcomes in Matched-Sibling Analysis by Interpregnancy Interval in Guangdong Province From 2014 to 2020.
LBW indicates low birth weight; OR, odds ratio; PTB, preterm birth; and SGA, small for gestational age.
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.