National Longitudinal Study on Adolescent to Adult Health

The National Longitudinal Study of Adolescent to Adult Health (also known as Add Health, formerly the National Longitudinal Study of Adolescent Health) is a nationally representative study originally designed to examine how social contexts (such as families, friends, peers, schools, neighborhoods, and communities) influence teens' health and risk behaviors. The study is now examining how health changes over the course of early adulthood. Public data for the study are available here.

How can I obtain access to the restricted-use data?

The Secure Data Center administers access to Waves I–IV of Add Health's restricted-use data for Stanford-affiliated researchers, including faculty, post-doctoral scholars, and graduate students.

Please submit this form to contact our Institutional Representative for the study. To expedite the process of becoming an authorized user, please be prepared to upload an electronic copy of a valid CITI Human Subjects Research Protections certificate.