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NDAR provides a single access to de-identified autism research data. For permission to download data, you will need an NDAR account with approved access to NDAR or a connected repository (AGRE, IAN, or the ATP). For NDAR access, you need to be a research investigator sponsored by an NIH recognized institution with federal wide assurance. See Request Access for more information.

Warning Notice

This is a U.S. Government computer system, which may be accessed and used only for authorized Government business by authorized personnel. Unauthorized access or use of this computer system may subject violators to criminal, civil, and/or administrative action. All information on this computer system may be intercepted, recorded, read, copied, and disclosed by and to authorized personnel for official purposes, including criminal investigations. Such information includes sensitive data encrypted to comply with confidentiality and privacy requirements. Access or use of this computer system by any person, whether authorized or unauthorized, constitutes consent to these terms. There is no right of privacy in this system.

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Learn About NDAR: For Participants

NDAR makes available autism research data from a variety of sources allowing scientists to use this data to accelerate scientific discovery related to autism. Summary information of the type of data available is available to all by visiting our query pages. Only scientists approved by the NDAR Data Access Committee may download research data from NDAR.

The potential for public benefit to be achieved through sharing autism research data is significant. However, information generated about individuals, such as data related to the presence or risk of developing autism may be sensitive. Therefore, protecting the privacy of the research participants and the confidentiality of their data is critically important. For those considering to consent to have their data shared with the scientific community, a short video is provided explaining the importance of data sharing.

NDAR Explained