The National Longitudinal Surveys (NLS) are a set of surveys conducted by the US Bureau of Labor Statistics (BLS) to gather information at multiple points in time on the labor market activities and other significant life events of several cohorts of men and women. The National Longitudinal Survey of Youth (NSLY) consists of the NLSY79 cohort (nationally-representative sample of 12,686 14-22 year olds)...

The Medical Expenditure Panel Survey (MEPS) is a set of large-scale surveys of families and individuals, their medical providers (doctors, hospitals, pharmacies, etc.), and employers across the United States. MEPS collects data on the specific health services that Americans use, how frequently they use them, the cost of these services, and how they are paid for, as well as data on the cost, scope,...

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. 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,...

The Demographic and Health Surveys (DHS) Program overseen by the US Agency for International AID (USAID) uses nationally representative surveys, biomarker testing, and geographic location to collect data on monitoring and impact evaluation indicators for individual countries and for cross-country comparisons. Standardized DHS surveys include the Demographic and Health Survey, Service Provision Assessment,...

The Child Health and Development Studies (CHDS) were launched in 1959 as prospective longitudinal cohort studies on pregnancy, delivery, and child development from birth through adolescence. Between 1959 and 1967, 15,000 families with expectant mothers who were members of the Kaiser Foundation Health Plan in Oakland, California consented to enrollment. Health and lifestyle data on mothers, fathers,...

The Novel Coronavirus Illness Patient Report (NCIPR) dataset includes survey responses from 2,212 confirmed COVID-19 patients aged 18 to 98 who were treated at NYU Langone Health facilities between February 2020 and March 2021 and consented to the survey. Survey invitations were distributed two waves: once in February 2021 and once in March 2021. Between waves, 9 new items were added to the survey...

Baby's First Years is the first randomized controlled trial in the United States to examine the causal impact of unconditional cash payments on children's early cognitive, socio-emotional, and brain development over 52 months. Researchers recruited 1,000 mothers with infants and incomes below the federal poverty line residing near study sites in New Orleans, LA, the Twin Cities (Minneapolis, MN and...

This dataset was collected for a study which examined differences in the gut microbiome within a cohort of 12-month old infants who provided samples either before the start of the COVID-19 pandemic or during the first 9 months of the pandemic. The study also assessed the demographics and health of the infants' primary caregivers, including factors such as race, ethnicity, socioeconomic status, mental...