National Household Survey on Drug Abuse, 1990

Investigators: Joseph Gfroerer, Joseph Gustin, Thomas Virag, Ralph Folsom & J. Valley Rachal

The 1990 National Household Survey on Drug Abuse (NHSDA) is the tenth in a series of cross-sectional studies, which began in 1971, designed to measure the prevalence and correlates of drug use in the United States household population aged 12 and over. The 1990 NHSDA was sponsored by the National Institute of Drug Abuse (NIDA). Researchers from the Research Triangle Institute in Research Triangle Park, North Carolina, directed the 1990 study. The basic sample design involved several selection stages; these were the selection of Primary Sampling Units (PSUs, e.g. counties), area segments (e.g., blocks or enumeration districts) within these PSUs, sample households within area segments, one or two (if any) age group domains within sample households, and a person within selected age group domains. Interviewers administered questionnaires in-person. All samples were done using probability methods. Topics covered in the 1990 NHSDA include tobacco, alcohol, and illicit drug use; consequences of various drugs; health condition; and general demographic information.

National Household Survey on Drug Abuse, 1991

Investigators: Joseph Gfroerer, Joseph Gustin, Thomas Virag, Ralph Folsom & J. Valley Rachal

The NHSDA is the only study that produces estimates of drug use among members of the household population the United States. The survey is appropriate for estimating prevalence rates for different drugs, since much drug use would not ordinarily come to the attention of administrative, medical, or correctional authorities and therefore would not be included in official statistics. In-person interviews with a large national probability sample seem to be the best way to estimate drug use in virtually the entire population of the United States. Topics covered in the 1991 NHSDA include tobacco, alcohol, and illicit drug use; consequences of various drugs; health condition; treatment for drug use; illegal activities; and use of anabolic steroids. Also, sets of questions regarding insurance and personal and family income sources and amounts were expanded in comparison to previous surveys. The 1991 survey includes 1,283 variables. The content of the NHSDA changes slightly from year to year. Changes made over the course of the 1990 and 1991 surveys include changes regarding sampling methods, sample populations, and the deletion and addition of variables. The 1991 NHSDA is the first NHSDA to sample from Alaska and Hawaii in addition to the contiguous states. Furthermore, unlike previous surveys, residents of non-institutional group quarters (e.g., college dormitories, group homes, civilians dwelling on military installations) and persons with no permanent residence (homeless people and residents of single rooms in hotels) were sampled in the 1991 NHSDA.

National Long Term Care Survey: 1982, 1984, 1989

Investigators: Center for Demographic Studies United States Department of Health and Human Services Health Care Financing Administration

The National Long Term Care Survey is a longitudinal study designed to provide information about the population of chronically disabled elderly persons in the United States. It was the first major nationally representative survey that dealt explicitly with the health and functional problems of the disabled elderly who live in the community, the formal and informal home long term care options available to meet the problems of the impaired elderly, and the ability to interchange home and institutional services for a specific population. The first three waves of interviews (1982, 1984, and 1989) were conducted with nationally representative sample of 30,308 persons age 65 or over who reported having a chronic functional impairment, defined as being unable to perform an activity of daily living (ADL) or an instrumental activity of daily living (IADL) for three months or more. Data were collected on a number of topics including cognitive ability, medical conditions, problems and help received for ADLs and IADLs, housing, health insurance, medical providers, income and assets, and personal characteristics. In addition, the 1989 wave collected extensive data from informal caregivers, unpaid caregivers who help the sample person with ADL or IADL activities. Topics covered in the survey of informal caregivers included demographic and social characteristics of the caregiver, the relationship between the caregiver and the impaired person, the kinds of care provided, expense and time costs to the caregiver, inconveniences and problems of the caregiver, work restrictions due to caregiving, and the caregivers feeling about caregiving.

National Longitudinal Study of Adolescent Health (Add Health), Wave III, 2001-2002, Public Use Education Data

Investigators: Catherine Riegle-Crumb, Chandra Muller, Kenneth Frank, Kathryn S. Schiller, Stephen Roey: Carolina Population Center

The National Longitudinal Survey of Adolescent Health (Add Health) was mandated by Congress to collect data for the purpose of measuring the impact of social environment on adolescent health. It examines the general health and well-being of adolescents in the United States, including, with respect to these adolescents, (1) the behaviors that promote health and the behaviors that are detrimental to health; and (2) the influence on health of factors particular to the communities in which adolescents reside. Dependent variables include diet and nutrition, eating disorders, depression, violent behavior, intentional injury, unintentional injury, suicide, exercise, health service use, and health insurance coverage. To better understand this transition, original Wave I respondents were re-interviewed between August 2001 and April 2002. At Wave III they were between 18 and 26 years of age. The emphasis in Wave III was on the multiple domains of young adult life that individuals enter during the transition to adulthood, and their well-being in these domains: labor market, higher education, relationships, parenting, community involvement. Data collected at Wave III will allow for diverse analyses across a spectrum of social, economic, and health-related outcomes. This dataset includes four data files: Education Data File (dataset S3): This file includes data from 3,947 respondents on 80 variables. Education Graduation Data File (dataset S4). This file contains graduation date information for 4,521 respondents. Education Weights Data File (dataset S5). This file contains longitudinal and cross-sectional weights for 3,964 respondents. School Weights Data File (dataset S6). This file contains school weights for 132 schools.

National Longitudinal Study of Adolescent Health (Add Health), Wave IV, 2007-2008

Investigators: Kathleen Mullan Harris, The Carolina Population Center

The National Longitudinal Survey of Adolescent Health (Add Health) was mandated by Congress to collect data for the purpose of measuring the impact of social environment on adolescent health. It examines the general health and well-being of adolescents in the United States, including, with respect to these adolescents, (1) the behaviors that promote health and the behaviors that are detrimental to health; and (2) the infuence on health of factors particular to the communities in which adolescents reside. Dependent variables include diet and nutrition, eating disorders, depression, violent behavior, intentional injury, unintentional injury, suicide, exercise, health service use, and health insurance coverage. Sociometrics is responsible for distribution of the public-use version of Add Health Wave IV described in this document. The Wave IV follow-up survey was designed to study developmental and health trajectories across the life course of adolescence into young adulthood. At the same time that the Add Health cohort was assuming adult roles and responsibilities, they were also developing crucial health habits and lifestyle choices that set pathways for their future adult health and well-being. By integrating biological information into models of health and human development, the Wave IV design stimulates interdisciplinary research teams that bridge the social and biomedical sciences.

National Longitudinal Study of Adolescent Health, Wave III, 2001-2002 (Add Health)

Investigators: J. Richard Udry, The Carolina Population Center

The National Longitudinal Survey of Adolescent Health (Add Health) was mandated by Congress to collect data for the purpose of measuring the impact of social environment on adolescent health. It examines the general health and well-being of adolescents in the United States, including, with respect to these adolescents, (1) the behaviors that promote health and the behaviors that are detrimental to health; and (2) the influence on health of factors particular to the communities in which adolescents reside. Dependent variables include diet and nutrition, eating disorders, depression, violent behavior, intentional injury, unintentional injury, suicide, exercise, health service use, and health insurance coverage. Add Health was designed to assess the health status of adolescents and explore the causes of their healthrelated behaviors, focusing on the effects of the multiple contexts or environments (both social and physical) in which they live. This study has collected data of interest to investigators from many disciplines in the social and behavioral sciences and from many theoretical traditions. The study explores the influences of both the individual attributes of adolescents and the attributes of their various environments on health and health-related behavior in areas such as diet, physical activity, health-service use, morbidity, injury, violence, sexual behavior, contraception, sexually transmitted infections, pregnancy, suicidal intentions/thoughts, substance use/abuse, and runaway behavior. Data were collected also on such attributes as height, weight, pubertal development, mental health status (focusing on depression, the most common mental health problem among adolescents), and chronic and disabling conditions. Add Health is longitudinal, with adolescents interviewed for a second time at a one-year interval and a third time at a six-year interval. Rather than relying on respondents' memories and reconstructions of past events, this design makes it possible to measure directly the influence of their experiences at one time on their behavior, and its consequences, at another. The Add Health research design was predicated on the idea that the differential health of adolescents has three sources: Different social environments. Social environments can be conceptualized at many levels of aggregation, from the family to the community. Different health-related behaviors. Differing behaviors may be related to attributes such as intelligence, predispositions, personality, skills, and physical characteristics. Different vulnerabilities and strengths. The same environment and/or the same behavior can affect individuals differently depending on their robustness and degree of susceptibility, which can originate in differing experiences or genetic endowments.

National Longitudinal Study of Adolescent Health, Waves I & II (ADD Health), 1994-1996

Investigators: J. Richard Udry and Peter Bearman

The National Longitudinal Survey of Adolescent Health (Add Health) was mandated by Congress to collect data for the purpose of measuring the impact of social environment on adolescent health. It examines the general health and well-being of adolescents in the United States, including, with respect to these adolescents, (1) the behaviors that promote health and the behaviors that are detrimental to health; and (2) the influence on health of factors particular to the communities in which adolescents reside. Some of the dependent variables include diet and nutrition, eating disorders, depression, violent behavior, intentional injury, unintentional injury, suicide, exercise, health service use, and health insurance coverage. Add Health data were collected in two waves. Wave I (collected between September, 1994 and December, 1995) includes three sets of data available for public use. The in-school data was collected from students grades 7 through 12 and consists of responses to questions about social and demographic characteristics of the respondents, the education and occupation of parents, household structure, risk behaviors, expectations for the future, self-esteem, health status, friendships, and school-year extracurricular activities. The in-home dataset consists of responses to a detailed and lengthy interview of a subset of adolescents who were selected from the rosters of the sampled schools. Finally, the Parent data were collected from one parent or parent-figure for each In-home sampled student. Wave II of the Add Health data (collected from April, 1996 through August, 1996) consists of the in-home adolescent follow-up interviews.

National Longitudinal Survey of Youth (NLSY), 1979-1982: Selected Variables (Waves 1-4), and Supplementary Variables

Investigators: Ohio State University

The NLSY is an ongoing study of 12,686 young women and men aged 14-21 in 1979. The study sample includes an oversampling of blacks and Hispanics; as a result, this Data Set will be particularly valuable for analyses of these subgroups. The NLSY participants have been surveyed annually since 1979. The DAAPPP file contains data from the first four survey waves, 1979-1982. Data from subsequent waves have been added to DAAPPP as they became available. This file contains an extract of approximately 2,000 of the NLSY variables, including the following: (1) complete childbearing histories (including age, sex, and current residence) of all children, for both males and females in the sample; (2) data on pregnancy losses, including timing and reason for loss; (3) data on both current and anticipated childcare arrangements, including costs of childcare; and (4) data on contraceptive usage both before and after pregnancies. Note for users of DAAPPP Data Sets #01-B1DAAPPP data sets 01 through B1 are comprised of a User's Guide, SPSS syntax files (*.SPS or *.SPX) and raw data files only. Most of these datasets contain SPSS syntax files that use Job Control Language (JCL) from 1980s versions of SPSS-X. Because the syntax is old, the syntax files require editing to conform to the current syntax standards used by SPSS/Windows or SPSS/Unix. If you require technical assistance in using or editing these syntax files, please contact Sociometrics' Data Support Group at 800.846.3475 or socio@socio.com.

National Longitudinal Survey of Youth 1979 Children and Young Adults 2012 (NLSY-79-CYA)

Investigators: U.S. Bureau of Labor Statistics

The NLSY79 Child and Young Adult (NLSY79-CYA) cohort is a longitudinal project that follows the biological children of the women in the NLSY79. The NLSY79 itself is a longitudinal project that follows the lives of a sample of American youth born between 1957-64. As of 2012, more than 10,000 children have been interviewed in at least one survey round of the NLSY79-CYA. To date, a total of 11,512 children have been identified as born to interviewed NLSY79 mothers. This dataset includes data collected in 2012. The NLSY79-CYA 2012 includes variables on educational attainment, school enrollment, the school-to-work transition process, work history, employment, income, household composition, demographic information, neighborhood characteristics, family background, parenting, marriage and cohabitation, fertility, sexual activity, health, attitudes, expectations, pro-social behaviors, crime, substance use, and more. In total, the NLSY79-CYA contains 7174 variables.

National Longitudinal Survey of Youth 1979 Children and Young Adults 2014 (NLSY-79-CYA)

Investigators: U.S. Bureau of Labor Statistics

The NLSY79 Child and Young Adult (NLSY79-CYA) cohort is a longitudinal project that follows the biological children of the women in the NLSY79. The NLSY79 itself is a longitudinal project that follows the lives of a sample of American youth born between 1957-64. As of 2014, more than 10,000 children have been interviewed in at least one survey round of the NLSY79-CYA. To date, a total of 11,512 children have been identified as born to interviewed NLSY79 mothers. This dataset includes data collected in 2014. The NLSY79-CYA 2014 includes variables on educational attainment, school enrollment, the school-to-work transition process, work history, employment, income, household composition, demographic information, neighborhood characteristics, family background, parenting, marriage and cohabitation, fertility, sexual activity, health, attitudes, expectations, pro-social behaviors, crime, substance use, and more. In total, the NLSY79-CYA contains 7240 variables.