The National Longitudinal Study of Adolescent to Adult Health (Add Health) is a longitudinal study of a nationally representative sample of adolescents in grades 7-12 in the United States during the 1994-95 school year. The Add Health cohort has been followed into young adulthood with four in-home interviews, the most recent in 2008, when the sample was aged 24-32. Add Health combines longitudinal survey data on respondents' social, economic, psychological and physical well-being with contextual data on the family, neighborhood, community, school, friendships, peer groups, and romantic relationships, providing unique opportunities to study how social environments and behaviors in adolescence are linked to health and achievement outcomes in young adulthood. The fourth wave of interviews expanded the collection of biological data in Add Health to understand the social, behavioral, and biological linkages in health trajectories as the Add Health cohort ages through adulthood.
These data are not available from ICPSR. Users should consult the data owners directly (via National Longitudinal Study of Adolescent to Adult Health) for details on obtaining these resources.
Scope of Study
Geographic Coverage: United States
The restricted version of these data are not available from ICPSR or DSDR. Users should consult the data owners directly for details on obtaining the data and documentation. The public use version continues to be available from ICPSR and DSDR (see ICPSR 21600).