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The National Longitudinal Study of Adolescent Health (Add Health) Twin Data

Published online by Cambridge University Press:  21 February 2012

Kathleen Mullan Harris ,
Carolyn Tucker Halpern ,
Andrew Smolen  and
Brett C. Haberstick
Kathleen Mullan Harris*
Affiliation:
Carolina Population Center, University of North Carolina at Chapel Hill, North Carolina, United States of America; Department of Sociology, University of North Carolina at Chapel Hill, North Carolina, United States of America. kathie_harris@unc.edu
Carolyn Tucker Halpern
Affiliation:
Carolina Population Center, University of North Carolina at Chapel Hill, North Carolina, United States of America; Department of Maternal and Child Health, School of Public Health, University of North Carolina at Chapel Hill, North Carolina, United States of America.
Andrew Smolen
Affiliation:
Institute for Behavioral Genetics, University of Colorado at Boulder, Colorado, United States of America.
Brett C. Haberstick
Affiliation:
Institute for Behavioral Genetics, University of Colorado at Boulder, Colorado, United States of America.
*
*Address for correspondence: Kathleen Mullan Harris, University of North Carolina at Chapel Hill, Carolina Population Center, CB# 8120 University Square, 123 W. Franklin Street, Chapel Hill, NC 27516-3997, USA.

Abstract

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This article describes the design and data availability for samples of genetic pairs in the National Longitudinal Study of Adolescent Health (Add Health). Add Health provides unique samples of genetic pairs that are nationally representative and followed longitudinally from early adolescence into young adulthood with 3 in-home interviews and a 4th interview planned for 2007 to 2008. The design of Add Health included an embedded genetic sample of more than 3000 pairs of individuals with varying genetic resemblance, including monozygotic twins, dizygotic twins, full siblings, half siblings, and unrelated siblings who were raised in the same household. Add Health has collected rich longitudinal social, behavioral, and environmental survey data, as well as buccal cell DNA from a subsample of the genetic sample (N = 2612). Add Health has an enlightened dissemination policy and to date has released phenotype and genotype data to more than 3000 researchers in the scientific community.

Type
Articles/United States of America
Information
Twin Research and Human Genetics , Volume 9 , Issue 6 , 01 December 2006 , pp. 988 - 997
Copyright
Copyright © Cambridge University Press 2006