The Fragile Families and Child Wellbeing Study (FFS) is a nationally representative, birth cohort study of approximately 4900 children born in large US cities (populations of 200,000 or more) between 1998 and 2000. The study includes: (1) interviews with mothers and fathers at birth and again when children are 1, 3, 5 and 9 years old, (2) medical records for a subset of mothers and children at birth, (3) in-home assessments of children and their home environments when children are 3, 5, and 9 years old, (4) interviews with children at age 9, (5) interviews with teachers when children are 3, 5, and 9 years old and (6) DNA samples from mothers and children when children are age 9. The study also includes in-depth, longitudinal interviews with a subset of approximately 75 couples during the first four years after the child's birth. The study design called for a large oversample of births to unmarried parents, and thus the data are a valuable resource for studying health disparities among minority and economically disadvantaged populations. To date, more than 1300 researchers have downloaded the public use data, and Google Scholar lists 730 scholarly articles, theses, books, and abstracts using the FFS data for the period covered by the current NICHD grant, 2006-2011. We seek funding to conduct another round of interviews with mothers and children when children are 15 years old.
Our specific aims are to: """""""" Update information on children's health and development and collect new data on health and health risk behavior, school performance, and anti- and pro-social behavior when children are age 15 """""""" Update information on contextual factors, including families, neighborhoods, schools and peers, when children are age 15, including retrospective data on family experiences since the last interview """""""" Collect saliva samples from 3,600 children at age 15 to be used for future methylation analysis Approximately 3600 mothers and 3100 children will be interviewed via phone. These phone interviews will be 55 minutes for mothers and 45 minutes for children. Five hundred adolescents will be interviewed in person for approximately 1 hour.

Public Health Relevance

This project will extend the Fragile Families and Child Wellbeing Study (FFS), a nationally representative, birth cohort study of approximately 4900 children born in large US cities (populations of 200,000 or more) between 1998 and 2000, by collecting data from mothers and adolescents when the children are 15 years old on children's health and health risk behavior, school performance, and anti- and pro-social behavior;on contextual factors, including families, neighborhoods, schools, and peers;and on methylation using saliva samples from 3600 children at age 15. Adolescence is a critical period in human development when children engage in both positive and negative behaviors that are known to have lasting consequences for future health and wellbeing. The new data will dramatically increase our knowledge of how children's experiences in early and middle childhood influence adolescent behaviors and, ultimately, health and wellbeing in adulthood.

National Institute of Health (NIH)
Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD)
Research Project (R01)
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Social Sciences and Population Studies Study Section (SSPS)
Program Officer
Bures, Regina M
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Princeton University
Other Domestic Higher Education
United States
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Pragg, Brianne; Knoester, Chris (2017) Parental Leave Use among Disadvantaged Fathers. J Fam Issues 38:1157-1185
Bzostek, Sharon H; Berger, Lawrence M (2017) Family Structure Experiences and Child Socioemotional Development During the First Nine Years of Life: Examining Heterogeneity by Family Structure at Birth. Demography 54:513-540
Pilarz, Alejandra Ros; Hill, Heather D (2017) Child-Care Instability and Behavior Problems: Does Parenting Stress Mediate the Relationship? J Marriage Fam 79:1353-1368
Donnelly, Louis; Garfinkel, Irwin; Brooks-Gunn, Jeanne et al. (2017) Geography of intergenerational mobility and child development. Proc Natl Acad Sci U S A 114:9320-9325
Nahmod, Nicole G; Lee, Soomi; Buxton, Orfeu M et al. (2017) High school start times after 8:30 am are associated with later wake times and longer time in bed among teens in a national urban cohort study. Sleep Health 3:444-450
Gunter, Samara R (2017) Dynamics of Urban Informal Labor Supply in the United States. Soc Sci Q 98:16-36
Pilkauskas, Natasha V; Campbell, Colin; Wimer, Christopher (2017) Giving Unto Others: Private Financial Transfers and Hardship Among Families with Children. J Marriage Fam 79:705-722
Radey, Melissa (2017) Unmarried Mothers' Postnatal School Enrollment: The Role and Intersection of Demographic and Socioeconomic Characteristics. J Soc Serv Res 43:115-128
James, Sarah; Hale, Lauren (2017) Sleep Duration and Child Well-Being: A Nonlinear Association. J Clin Child Adolesc Psychol 46:258-268
Pilkauskas, Natasha V; Brooks-Gunn, Jeanne; Waldfogel, Jane (2017) Maternal Employment Stability in Early Childhood: Links With Child Behavior and Cognitive Skills. Dev Psychol :

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