The National Children’s Study collected health data on frequently tracked maternal risk factors from over 5,000 women prior to conception and during their pregnancies as part of the Vanguard Study. This information was collected using in-person interviews, phone interviews, medical abstracts, and self-reported questionnaires from 2009 to 2014.


The Risk Factors Affecting Maternal Health and Pregnancy Collected in the NCS Vanguard Study (PDF - 1.4MB) data brief contains national benchmark comparisons for:


To learn more about available NCS data, please Login or register. There are currently over 14,000 variables from 150+ datasets available for new and unique research and analysis.