Information on the National Children's Study's Closing


Letters from the Director of NICHD to Participants

The Director of NICHD sent this letter to all Vanguard Study participants, thanking them for their participation and letting them know the study is ending.

NCS Working Group Findings

Dr. Collins assembled a working group in 2014 in light of concerns raised about the Study by the National Academy of Sciences. On December 12, 2014, the working group released its findings.


On December 12, 2014 the National Children's Study ​closed following the advice of an expert review group. The Study will not collect new information from participants. We want to thank you for your time and all that you have given to the Study.

The Study will make the data that we have already collected available to other researchers. This way the Study will be a valuable resource for years to come. We will continue to make every effort to protect your privacy.

Below you will find answers to some frequently asked questions about the Study's closing. If you have other questions, please contact Vanguard@ncs.nih.gov​ or call 1-877-865-2619.

Q: Why was the Study closed?
Answer: The Director of the NIH asked a group of researchers to review the National Children's Study. The researchers said the Study's goals could not be met with the current plan.

Q: What happens to all of the information already collected?
A: The Study will make the information available to other researchers. We have systems in place to protect your privacy.

Q: When will the Study information become available?
A: Current plans are to make Study information available around summer 2015.
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