Figure 2.
Adjusted mean difference (95% CI) in the scores of the Mullen Scales of Early Learning associated with a 1 µg/m3 increase in PM2.5 exposure, by outcome classification.
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.