Social, Behavioral, and Biological Linkages Across the Life Course
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The National Longitudinal Study of Adolescent to Adult Health (Add Health) is a longitudinal study of a nationally representative sample of over 20,000 adolescents who were in grades 7-12 during the 1994-95 school year, and have been followed for five waves to date, most recently in 2016-18. Over the years, Add Health has collected rich demographic, social, familial, socioeconomic, behavioral, psychosocial, cognitive, and health survey data from participants and their parents; a vast array of contextual data from participants’ schools, neighborhoods, and geographies of residence; and in-home physical and biological data from participants, including genetic markers, blood-based assays, anthropometric measures, and medications. Ancillary studies have added even more data over the years. Data from the project are available in various forms and have been analyzed in thousands of publications in peer-reviewed journals.
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December 5, 2024
Abortion Policy and Socioeconomic Outcomes
Abortion remains a stigmatized and often restricted medical procedure, making it difficult to study due to underreporting. Using data from the National Longitudinal Study of...
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September 30, 2024
New Data Release from Add Health
The following data are now available to Add Health contract researchers. The Rural-Urban Commuting Area (RUCA) CodesRural-urban commuting area (RUCA) codes classify U.S. census tracts using...
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September 23, 2024
Celebrating Hispanic Heritage Month: Key Findings from Add Health’s Research on Hispanic American Communities
In honor of National Hispanic Heritage month, September 15 to October 15, Add Health would like to highlight some of the important discoveries our researchers...
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