An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

America's Children and the Environment (ACE)

Methods for Health: Adverse Birth Outcomes

Updated in August 2019, this document contains detailed descriptions of the source data and methods for the Health: Adverse Birth Outcomes indicators.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.