Search results

The Future of Families and Child Wellbeing Study (FFCWS, formerly known as the Fragile Families and Child Wellbeing Study) follows a cohort of nearly 5,000 children born in large, U.S. cities between 1998 and 2000. The study oversampled births to unmarried couples; and, when weighted, the data are representative of births in large U.S. cities at the turn of the century. The FFCWS was originally designed to address four questions of great interest to researchers and policy makers:

1. What are the conditions and capabilities of unmarried parents, especially fathers?
2. What is the nature of the relationships between unmarried parents?
3. How do children born into these families fare?
4. How do policies and environmental conditions affect families and children?

The FFCWS consists of interviews with mothers, fathers, and/or primary caregivers at birth and again when children are ages 1, 3, 5, 9, 15, and 22. The parent interviews collected information on attitudes, relationships, parenting behavior, demographic characteristics, health (mental and physical), economic and employment status, neighborhood characteristics, and program participation. Beginning at age 9, children were interviewed directly (either during the home visit or on the telephone). The direct child interviews collected data on family relationships, home routines, schools, peers, and physical and mental health, as well as health behaviors.

A collaborative study of the FFCWS, the In-Home Longitudinal Study of Pre-School Aged Children (In-Home Study) collected data from a subset of the FFCWS Core respondents at the Year 3 and 5 follow-ups to ask how parental resources in the form of parental presence or absence, time, and money influence children under the age of 5. The In-Home Study collected information on a variety of domains of the child's environment, including: the physical environment (quality of housing, nutrition and food security, health care, adequacy of clothing and supervision) and parenting (parental discipline, parental attachment, and cognitive stimulation). In addition, the In-Home Study also collected information on several important child outcomes, including anthropometrics, child behaviors, and cognitive ability. This information was collected through interviews with the child's primary caregiver, and direct observation of the child's home environment and the child's interactions with his or her caregiver.

Similar activities were conducted during the Year 9 follow-up. At the Year 15 follow-up, a condensed set of home visit activities were conducted with a subsample of approximately 1,000 teens. Teens who participated in the In-Home Study were also invited to participate in a Sleep Study and were asked to wear an accelerometer on their non-dominant wrist for seven consecutive days to track their sleep (Sleep Actigraphy Data) and that day's behaviors and mood (Daily Sleep Actigraphy and Diary Survey Data).

An additional collaborative study collected data from the child care provider (Year 3) and teacher (Years 9 and 15) through mail-based surveys. Saliva samples were collected at Year 9 and 15 (Biomarker file and Polygenic Scores). The Study of Adolescent Neural Development (SAND) COVID Study began data collection in May 2020 following the onset of the COVID-19 pandemic. It included online surveys with the young adult and their primary caregiver.

The FFCWS began its seventh wave of data collection in October 2020, around the focal child's 22nd birthday. Data collection and interviews continued through January 2024. The Year 22 wave included a young adult (YA) survey with the original focal child and a primary caregiver (PCG) survey. Data were also collected on the children of the original focal child (referred to as Generation 3, or G3).

In 2017, the FFCWS team announced the Fragile Families (FF) Challenge, a collaborative effort in which participants were tasked with using machine learning methods and FFCWS data (Baseline to Year 9) to build a model that would predict six key outcomes at Year 15. Materials used in the FF Challenge have been archived in this collection.

Documentation for these files is available on the FFCWS website under Data and Documentation. For details of updates made to the FFCWS data files, please see the project's Data Alerts page.

Data collection for the Future of Families and Child Wellbeing Study was supported by the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) of the National Institutes of Health under award numbers R01HD36916, R01HD39135, and R01HD40421, as well as a consortium of private foundations.

Below is the citation for use of the FFCWS data accessed through ICPSR. For information on additional citation requirements when using FFCWS in publications, please refer to this FAQ on the FFCWS project site.

The National Comorbidity Survey Replication Adolescent Supplement (NCS-A) was designed to estimate the lifetime-to-date and current prevalence, age-of-onset distributions, course, and comorbidity of DSM-IV disorders in the child and adolescent years of life among adolescents in the United States; to identify risk and protective factors for the onset and persistence of these disorders; to describe patterns and correlates of service use for these disorders; and to lay the groundwork for subsequent follow-up studies that can be used to identify early expressions of adult mental disorders.

The core NCS-A interview schedule was an adaptation of the World Health Organization Composite International Diagnostic Interview (CIDI). NCS-A also administered the non-verbal subtest (Matrices subtest) of the Kaufman Brief Intelligence Test (K-BIT).

In addition to interviewing adolescents, information was collected from a parent or a parent surrogate to obtain an additional perspective on the adolescent's mental health and its correlates. Information from parents focused on the five adolescent disorders for which previous methodological research has most consistently shown that parental reports are important for making diagnoses: attention-deficit/hyperactivity disorder, conduct disorder, oppositional defiant disorder, major depressive episode, and dysthymic disorder.

Demographic information collected by NCS-A includes age, citizenship status, country of birth, criminal history, ethnicity, grandparents' country of birth, language(s) spoken in the home, parents' country of birth, race, religion, and sex.

The data collection contains six data files: (1) data for the adolescent household and school respondents; (2) data for the parents who responded to the long self-administered questionnaire; (3) data for the parents who responded to both the long self-administered questionnaire and short telephone interview; (4) diagnostic variables derived from the data collected from the adolescents and parents; (5) K-BIT scores normed to the NCS-A adolescent sample; and (6) raw K-BIT data.

This repeated cross-sectional national telephone survey of households was conducted as part of the evaluation of the Robert Wood Johnson Foundation's Urban Health Initiative (UHI), a long-term effort to improve the health, safety, and well-being of children and youth in five economically distressed cities in the United States: Baltimore, MD, Detroit, MI, Oakland, CA, Philadelphia, PA, and Richmond, VA. The UHI Survey of Adults and Youth (SAY) included a variety of questions, asked of both parents and their 10-18 year old children, regarding children's health, safety, perceptions of neighborhoods and schools, family relations, quality of city services, and other issues. SAY surveyed 3 types of households -- households without children, households with children aged 0-9 years, and households with children aged 10-18 years -- in up to 14 geographic areas, including the 5 UHI program cities, 9 comparison cities demographically similar to the UHI cities, the suburban regions of these cities, the most populous 100 United States cities, and the rest of the country. There were 3 waves of SAY fielded during the course of the UHI project: during the 1998-1999, 2001-2002, and 2004-2005 school years.

The vast majority of survey items in SAY are from other national surveys, including the National Longitudinal Survey of Youth, the Youth Risk Behavior Survey, and the National Health Interview Survey. The survey instrument was revised between waves, but about 50 percent of the instrument remained the same across all 3 waves. All adult respondents (both parents and nonparents) were first asked questions about services and general conditions in their city. Parents were then asked additional questions about their children, their children's schools, child-related services in their communities, neighborhood and city conditions, and brief question segments about randomly selected children in various age groups. If one or more 10-18 year olds lived in the household, and if the parent respondent gave permission, up to two 10-18 year olds in the household were then interviewed about their schools, neighborhoods, peer group activities and behaviors, out-of-school time, relations with adults, and other topics.

There is a separate data file for each wave, and each record contains all of the data for a given household, i.e., the data collected from one adult and up to two 10-18 year olds.

This study investigated the factors that influenced the career decisions of young physicians and the characteristics of their practices. The collection has five datasets: Public-Use Version of the Young Physicians Survey (Dataset 1), Socioeconomic Monitoring System Study (Dataset 2), ZIP Code Data (Dataset 3), Verbatim Responses to the Open-Ended Questions (Dataset 4), and Restricted-Use Version of the Young Physicians Survey (Dataset 5).

The Public-Use Version of the Young Physicians Survey comprises responses from the Young Physicians Survey (YPS), plus merged data from the American Medical Association (AMA) Masterfile and the Association of American Medical Colleges' Student and Applicant Information Management System (SAIMS) database. The YPS interviewed physicians below 40 years of age who recently completed graduate medical training and were in their early years of practice. These physicians were queried about their graduate medical training, perceptions of the medical profession, current practice arrangements, career decisions, family background, patient care activities, and current income and expenses. To obtain information on current practice arrangements, respondents were questioned about the practices they worked in, including who owned the practices, the number of physicians in each practice, specialties or subspecialties practiced, usual fees for selected services, percentages of revenues from HMOs, PPOs, and IPAs, and percentages of patients who were Medicare patients, had no health insurance coverage, or were poor, Black, Hispanic, severely physically disabled, or chronically mentally ill. Questions on career decisions asked respondents about factors that influenced their career choices, such as reasons for working in multiple practices, reasons for leaving past practices, and reasons for deciding in favor of or against self-employment. Information on family background elicited by the survey includes the respondent's race, marital status, and educational debt, parents' income class and education, number of children living in the respondent's home, and whether the respondent's spouse or parents were physicians. Questions on patient care activities included questions on the number of hours spent providing uncompensated health care to the poor, and the number of hours spent with patients in a variety of settings, such as the office, emergency rooms, hospital outpatient clinics, and operating rooms. Information from the AMA Masterfile and the SAIMS database includes board certification status, AMA membership, school and year of graduation, Medical College Admission Test scores, primary undergraduate institution, most recent grade point averages, place of birth, number of acceptances to United States medical schools, parents' occupations, preferred medical specialty, and preferred practice setting.

Dataset 2 comprises responses from the AMA's Socioeconomic Monitoring System (SMS), a semiannual survey of nonfederal physicians that collected data on topics similar to those in the YPS, such as practice ownership, hours spent seeing patients in various settings, income, expenses, and opinions on practice procedures. The SMS data can be used for comparative analyses of young, prime, and senior physicians.

The ZIP Code Data contain estimates for the composition of the population residing in the ZIP code areas of the YPS respondents' main practices. This includes estimates of the size of each ZIP code area population, as well as its components with respect to gender, age, race, Hispanic ethnicity, and income. Also included are estimates of the number of physicians and their composition with respect to age, sex, practice type, and specialty.

Dataset 4 contains verbatim responses to open-ended questions asked in the YPS.

The Restricted-Use Version of the Young Physicians Survey is the same as the Public-Use Version of the Young Physicians Survey, except for some variables that were restricted from general dissemination for reasons of confidentiality. The restricted-use version includes the restricted variables, but the public-use version does not.