Contact Us

If you have questions about the study or have difficulty updating your contact information, please call the RTI Add Health Project Hotline:

1 (866) 382-6814

Project Hotline staff are available between 9am and 5pm EST to answer any questions you may have. If you call outside of these hours, please leave your name and phone number and we will return your call as soon as possible.

You can also email your question to

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