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Notice from National Children's Study Archive

The National Children’s Study (NCS) Vanguard Data and Sample Archive and Access System (NCS Archive) is pleased to announce that study visit data spanning 42 months of child follow-up are now available.  The NCS Archive is a federally funded data resource that provides research opportunities at no cost to users. 

The NCS Vanguard was a pilot for a planned cohort study of environmental influences on child health and development.  Starting in 2009, recruitment strategies were tested in 43 counties across 31 states throughout the U.S. The study enrolled over 5,600 birth families and followed them through 2014.  At study visits, questionnaires and interviews, neuro-psychosocial and cognitive assessments, and physical examination data were collected, along with nearly 25,000 biological and environmental primary samples from which a sample repository of over 250,000 items was created.  That information and material is now available through the NCS Archive for approved research projects by qualified investigators. 

The Archive now offers child study visit data from birth to 42 months of age, in addition to pregnancy study visit data.  

For detailed instructions regarding working in the NCS Archive, refer to the online help document located under the Help tab on the home page –  Additional information is available on the NCS web page of the NICHD public website.  For support questions, please email

We remind users that the purpose of the NCS Vanguard Study was to test procedures for use in a larger study, and due to its pilot nature, identical evaluations were not conducted on all participants. 

We hope you visit and find the NCS Archive a valuable resource.  We welcome your comments or questions at


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