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.
Forest plot of the relationship between ferritin, heme iron, dietary total iron levels, and GDM risk, comparing only the highest category with the lowest. The presented summary estimate was calculated using an inverse-variance fixed-effect model.
