National Longitudinal Study of Adolescent Health (Add Health), 1994-2008: Disposition Files [Restricted Use] (ICPSR 27034)
Principal Investigator(s): Harris, Kathleen Mullan, University of North Carolina-Chapel Hill; Udry, J. Richard, University of North Carolina-Chapel Hill
The National Longitudinal Study of Adolescent Health (Add Health) is a longitudinal study of a nationally representative sample of adolescents in grades 7-12 in the United States during the 1994-1995 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. The files contained in this component of the Add Health restricted data are the Wave I through Wave IV disposition files, and a file containing cause of death information for Add Health respondents reported deceased at Wave III (n=96) and Wave IV (n=126).
The cause of death information was obtained from the National Death Index (NDI), 2007, which is produced by the National Center for Health Statistics (NCHS). The NDI uses the World Health Organization's (WHO) International Classification of Disease (ICD) codes to identify causes of death. The NDI dataset contains 3 variables and has 227 observations. The dataset identifies cause of death, as well as the number of days between the respondent's Wave I interview and the 2007 NDI reported date of death.
One or more files in this study are not available for download due to special restrictions ; consult the restrictions note to learn more. You can apply online for access to the data. A login is required to apply for access.
All data in this study are restricted and are available under a Restricted Data Use Agreement.
Harris, Kathleen Mullan, and J. Richard Udry. National Longitudinal Study of Adolescent Health (Add Health), 1994-2008: Disposition Files [Restricted Use]. ICPSR27034-v5. Chapel Hill, NC: Carolina Population Center, University of North Carolina-Chapel Hill/Ann Arbor, MI: Inter-university Consortium for Political and Social Research[distributors], 2014-02-13. doi:10.3886/ICPSR27034.v5
Persistent URL: http://doi.org/10.3886/ICPSR27034.v5
This study was funded by:
- United States Department of Health and Human Services. Centers for Disease Control and Prevention. Office of Minority Health and Health Disparities
- United States Department of Health and Human Services. National Institutes of Health. National Institute on Drug Abuse
- United States Department of Health and Human Services. National Institutes of Health. National Institute of General Medical Sciences
- United States Department of Health and Human Services. National Institutes of Health. National Cancer Institute
- United States Department of Health and Human Services. Centers for Disease Control and Prevention. National Center for Health Statistics
- United States Department of Health and Human Services. Office of Public Health and Science. Office of Minority Health
- United States Department of Health and Human Services. National Institutes of Health. Office of AIDS Research
- United States Department of Health and Human Services. National Institutes of Health. Office of Behavioral and Social Sciences Research
- United States Department of Health and Human Services. National Institutes of Health. Office of Research on Women's Health
- United States Department of Health and Human Services. Office of the Assistant Secretary for Planning and Evaluation
- United States Department of Health and Human Services. National Institutes of Health. National Institute on Alcohol Abuse and Alcoholism
- United States Department of Health and Human Services. National Institutes of Health. National Institute on Deafness and Other Communication Disorders
- United States Department of Health and Human Services. National Institutes of Health. National Institute of Mental Health
- United States Department of Health and Human Services. National Institutes of Health. National Institute of Nursing Research
- National Science Foundation
- United States Department of Health and Human Services. National Institutes of Health. Eunice Kennedy Shriver National Institute of Child Health and Human Development (P01-HD31921)
- United States Department of Health and Human Services. Office of Public Health and Science. Office of Population Affairs
Scope of Study
Subject Terms: academic achievement, adolescents, alcohol consumption, birth control, classroom environment, dating (social), death records, drinking behavior, drug use, eating habits, educational environment, families, family planning, family relationships, family structure, friendships, health, health behavior, health care access, health status, household composition, interpersonal relations, living arrangements, marriage, neighborhood characteristics, neighborhoods, parent child relationship, parental attitudes, parental influence, physical characteristics, physical condition, physical fitness, physical limitations, public assistance programs, religious behavior, religious beliefs, reproductive history, school attendance, self concept, self esteem, sexual attitudes, sexual behavior, smoking, social environment, social networks, tobacco use, violence, welfare services
Geographic Coverage: United States
Date of Collection:
Unit of Observation: individual
Universe: Adolescents in grades 7-12 and their families.
Data Types: survey data
Data Collection Notes:
Wave I and Wave II field work was conducted by the National Opinion Research Center of the University of Chicago. Wave III and Wave IV field work was conducted by the Research Triangle Institute.
For more information, please see the study website.
Sample: Wave I, Stage 1 School sample: stratified, random sample of all high schools in the United States. A school was eligible for the sample if it included an 11th grade and had a minimum enrollment of 30 students. A feeder school, a school that sent graduates to the high school and that included a 7th grade, was also recruited from the community. Wave I, Stage 2: An in-home sample of 27,000 adolescents was drawn consisting of a core sample from each community plus selected special over samples. Eligibility for over samples was determined by an adolescent's responses on the In-School Questionnaire. Adolescents could qualify for more than one sample. In addition, parents were asked to complete a questionnaire about family and relationships. The Wave II in-home interview sample is the same as the Wave I in-home interview sample, with a few exceptions. Information about neighborhoods/communities was gathered from a variety of previously published databases. Wave III: The in-home Wave III sample consists of Wave I respondents who could be located and re-interviewed six years later. Wave III also collected High School Transcript Release Forms as well as samples of urine and saliva. Wave IV: A fourth in-home interview was conducted in 2008 and 2009 with the original Wave I respondents, and was designed as a follow-up of the nationally representative sample of adolescents first interviewed in 1994 and 1995. During Wave IV, 80.3% of the eligible sample was interviewed. The Wave IV sample collected longitudinal data on social, economic, psychological, and health circumstances from respondents, as well as longitudinal geographic data. At the time of the interview, the Wave IV participants were 24 to 32 years old and settling into young adulthood.
Mode of Data Collection: audio computer-assisted self interview (ACASI), record abstracts, computer-assisted personal interview (CAPI), computer-assisted self interview (CASI), computer-assisted telephone interview (CATI), coded on-site observation, cognitive assessment test, face-to-face interview, paper and pencil interview (PAPI), self-enumerated questionnaire, on-site questionnaire, telephone interview
Extent of Processing: ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:
- Performed consistency checks.
- Standardized missing values.
- Checked for undocumented or out-of-range codes.
Original ICPSR Release: 2010-01-14
- 2014-02-14 Missing value information in codebooks and data were corrected.
- 2014-02-13 The National Death Index dataset was added to the Add Health study. Codebooks for datasets 1, 2, and 3 were updated to reflect changes to the ICPSR style sheet.
- 2011-02-18 Title, summary, and collection dates were updated to reflect an additional data collection wave in 2008.
- 2010-09-02 Disposition file for Wave IV was revised to include updated information on five participants.
- 2010-04-23 Disposition files for Waves I and II have been added.
- 2010-02-03 Codebooks and documentation were made available for public download.
- Citations exports are provided above.
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