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The purpose of the original research project was to evaluate birth outcomes of second children after community-based home visiting ("Nurturing Families Network" (NFN)) that targeted first-time parents. Outcomes measured include gestational age, birthweight, pregnancy spacing, cesarean sections, and timing of prenatal care initiation.

Oral contraceptive (OC) users living in El Paso, Texas were interviewed to assess motivations for patronizing a United States clinic or a Mexican pharmacy with over-the-counter (OTC) pills and to determine which women were likely to use the OTC option. The experiences of OC users who obtained their contraception from Mexican pharmacies were compared with those of women who obtained their pills from family planning clinics in El Paso, Texas, where eligible low-income women often pay nothing. 532 clinic users and 514 pharmacy users were surveyed about background characteristics, motivations for choosing their oral contraception source, and satisfaction with this source. For more information, please see the Border Contraceptive Access Study website.

The COMBINE study was a longitudinal examination of pediatric Crohn's Disease (CD) patients in the United States with data collected from 2015-2022. This study was a randomized, double blind, placebo controlled pragmatic trial to compare low dose oral methotrexate versus a placebo in children with Crohn's disease initiating anti-TNF (tumor necrosis factor) therapy with Infliximab or Adalimumab. Eligible participants were randomized with a 1:1 allocation and followed for a minimum of 12 months and maximum of 36 months in the context of routine clinical care. The primary outcome was a composite of indicators of treatment failure and/or toxicity. Secondary outcomes included patient reported outcomes of pain interference and fatigue.

Crohn's disease (CD) is a chronic inflammatory bowel disease (IBD) that affects approximately 600,000 Americans with estimated direct costs of $3.6 billion annually. Typical symptoms (e.g., abdominal pain, bloody diarrhea) result in substantial morbidity, including hospitalization and surgery, missed work and school, and diminished quality of life. The primary treatment goals for all CD patients are to induce remission by eradicating intestinal inflammation and related symptoms and maintain remission by preventing disease flares and progression. Additional treatment goals for pediatric CD include restoring physical and emotional development.

The Comprehensive Child Development Program (CCDP) was implemented as a result of the Comprehensive Child Development Act (Public Law [PL] 100-297), originally enacted by Congress in 1988 in an effort to increase the educational potential of young children from low-income families and to decrease the likelihood that they would be caught in the cycle of poverty. The CCDP was designed to provide intensive, comprehensive, integrated, and continuous support services for children from low-income families from birth, or before, through their entrance into elementary school, to enhance their intellectual, social, emotional, and physical development. Additionally, the CCDP was designed to offer support services for parents and other household family members to enhance their life management skills and economic self-sufficiency. The Comprehensive Child Development Act also mandated that programs collect data on the individuals and geographic areas served, including the types of services provided, the estimated costs of providing comprehensive services, the types and nature of conditions and needs identified and met, and other information that may be required.

Thus, there are two components of the CCDP data collection: the Evaluation of the Comprehensive Child Development Program and the Comprehensive Child Development Program Management Information System (MIS). The families in the MIS included all CCDP families in the CCDP evaluation and all families who replaced CCDP families that dropped out of the study any time during the demonstration. More than 4,000 families participated in the CCDP study. Those that were selected were randomly assigned to either an experimental or control group.

Evaluation Data

The CCDP evaluation data are taken from parental self-report and child assessments and consist of 25 data files that can be grouped into several broad categories. Some of the data files are longitudinal in nature, that is, there are multiple observations (e.g., interviews and tests) for each family or child. Other files, however, are at the family or child level, and they contain data describing outcomes at the end of the study. The categories covered in the CCDP evaluation data files include:

• Baseline Data -- contain information from recruitment and enrollment forms on background and demographic characteristics, information on focus child birth outcomes, and the mother's behavior during the prenatal period.
• Parent/Family Data -- contain information about household composition and stability, economic self-sufficiency, maternal physical and psychological health, parenting, coping and life skills, early childhood services, health care services, and case management.
• Child Status Data -- are comprised of information related to child health status. This includes topics such as hospitalization, health problems, special health needs, learning problems, and health maintenance.
• Assessments of Child Social-Emotional Development -- contain information about adaptive and presocial behaviors for two, three, and four-year-olds, the prevalence of behavioral and emotional problems for such children, and adaptive social behavior for the five-year-olds.
• Assessments of Child Cognitive Development -- information on children's cognitive development at age two, and children's receptive vocabulary cognitive development (mental processing and achievement) at age three, four, and five.
• Parenting Measures -- are comprised of information about parenting attitudes and beliefs, the home environment for 18-, 36-, and 48-months-old children, parent-child interactions, birth-level data on risk behaviors during pregnancy, and birth outcomes for children.
• Economic Self-Sufficiency Measures -- provide information about employment, income, dependence on public assistance, and steps to employment.

Management Information System Data

For research and monitoring purposes, the CCDP mandated that all contacts and services must be recorded and entered into the management information system (MIS). The MIS was designed to monitor the nature and number of services received by families participating in each of the CCDP projects. The MIS contains both qualitative and quantitative data for CCDP families at all of the 24 project sites. MIS data is composed of 23 data collection forms spanning 4 broad categories: (1) CCDP grantee administration, (2) CCDP program descriptions, (3) CCDP family characteristics and service plans, and (4) CCDP services utilization. MIS data include information about CCDP family goals, service utilization, and program and staff characteristics.

The CCDP MIS was the primary source of the quantitative data used in the CCDP evaluation. Supplemental MIS verification data was a secondary source of qualitative information. The CCDP also collected qualitative data in the form of ethnographer reports that provide information about program characteristics, operations, implementation, service delivery, program attrition, diversity among families, and family satisfaction. Sixteen ethnographer reports were produced for each of the 24 project sites.

The Continuity and Change in Contraceptive Use study assessed contraceptive use patterns from a national sample of women four times over an 18-month time period. Researchers examined patterns of use and a wide range of issues that inform women's contraceptive use patterns, including pregnancy motivation, life events, relationship dynamics and access to health care.

These data come from surveillance activities conducted by the Guttmacher Institute over several decades, collecting or compiling data for the period 1994 through 2016. These activities track the numbers of women who have a potential demand for contraceptive care (because they are of reproductive age, sexually active and not seeking to become pregnant), the subset of these women who likely need public support for care (because of their family income level or their age), the numbers of women who receive contraceptive services from publicly funded clinics, and the numbers of clinics providing publicly supported contraceptive services. These efforts have been conducted periodically, typically about every five years, but at times the intervals between efforts were shorter or longer than five years. The most recent data were collected or compiled for 2015 (women served) and 2016 (women with potential demand for services).

This release includes two separate datasets. Dataset 1, "Need for contraceptive services," provides county-level aggregate data for 6 different years (1995, 2000, 2002, 2006, 2010, and 2016). For each county, the data represent estimates of the number of women who have a potential demand for contraceptive services and the number who likely need public support for care, both in total, and according to key socio-demographic characteristics. Dataset 2, "Clinics providing contraceptive services and women served," provides county-level aggregate data for six different years (1994, 1997, 2001, 2006, 2010, and 2015). For each county, the data represent the number of publicly funded clinics according to clinic type and funding status and the number of female contraceptive patients served at those clinics.

Understanding patients' expectations and their experiences can help hospitals improve care. Hospitals often send surveys to patients to ask about their care. To create surveys quickly, hospitals sometimes pick questions from an item bank. An item bank is a list of survey questions available to use about a specific topic.

In this study, the research team created an item bank about childbirth care. The team used the item bank to create and carry out a survey about women's preferences and experiences with care during and after childbirth. The team looked at which questions related closely to women's overall ratings of their hospital care.

The First Baby Study (FBS) was a prospective cohort study designed to investigate the association between mode of delivery at first childbirth (cesarean or vaginal) and subsequent fecundity and fertility over the course of a 3-year follow-up period. Women were enrolled during pregnancy and interviewed by telephone in their third trimester. Enrolled participants were followed-up with and surveyed at 1, 6, 12, 18, 24, 30 and 36 months postpartum. Participants were enrolled in 2009 to 2011 and the last interview was conducted in 2014.

The Integrated Fertility Survey Series (IFSS) integrates data from ten underlying component studies of family and fertility: the Growth of American Families studies of 1955 and 1960; the National Survey of Fertility of 1965 and 1970; and the National Surveys of Family Growth of 1973, 1976, 1982, 1988, 1995, and 2002. The first release contains harmonized sociodemographic variables for all respondents from all ten component studies, including those related to marital status, race and ethnicity, education, income, migration, religion, and region of origin, among others. The second release adds harmonized husband/partner sociodemographic variables as well as harmonized union history variables. The third release adds harmonized pregnancy, adoption, non-biological children, and menstruation variables. The fourth release adds harmonized fertility variables. The fifth release includes the addition of the pregnancy interval file. This file contains 217,128 pregnancy records with information pertaining to the pregnancies of all respondents. The sixth release adds comparative sample variables to the respondent and pregnancy interval files, and includes the addition of the contraceptive calendar file. This file contains 53,317 records with information pertaining to type and frequency of contraceptive use. The seventh release includes additional variables related to contraceptive knowledge, contraceptive use, birth control and family planning services, sexual history, infertility, and sterilizing operations. It also adds sociodemographic and union history variables. Imputed data through the third release are also included.

This study explores whether perinatal telehealth uptake has mitigated the pandemic's effects on disparities in maternal care access, quality, and outcomes by race, ethnicity, and rural or urban residence. Research to date has approached this question in several ways. First, researchers have utilized census data to assess whether community-wide broadband infrastructure exists to support the use of telehealth services in areas with high travel times to maternal care units. Findings suggest that socioeconomically disadvantaged communities face significant barriers to maternity care access, both with substantial travel burdens and inadequate digital access to facilitate telehealth services. Second, to examine maternal care quality, researchers have employed South Carolina hospital-based claims data and vital statistics to identify racial, ethnic, and urban/rural disparities in rates of cesarean delivery before and during the COVID-19 pandemic period. Results indicate that cesarean rates differed by rural vs. urban facility locations and racial and ethnic groups but observed disparities were not significantly exacerbated by the pandemic. Third, using South Carolina hospital-based claims data and COVID-19 testing data, researchers found significant racial, ethnic, and rural disparities in postpartum readmissions involving mental health and substance use disorders from childbirth discharge through one year postpartum during the COVID-19 pandemic. Finally, drawing on data from the National COVID Cohort Collaborative (N3C), research has shown that hybrid care increased substantially during the COVID-19 public health emergency, but pregnant people living in rural areas had lower levels of hybrid care than urban people, and individuals who belonged to racial and ethnic minority groups were more likely to have hybrid care than White individuals.

Future research will investigate the impact of the COVID-19 pandemic and perinatal telehealth uptake on additional maternity care and birth outcomes by race, ethnicity, and urbanicity. The study also aims to assess how state-level telehealth policies relate to perinatal telehealth uptake by race, ethnicity, and urbanicity, and to develop a model to predict long-term changes in maternal care access, quality, outcomes, and expenditures, with and without state telehealth policies.

The ICPSR provides variable-level metadata for the data associated with this study. The actual data may only be available from the Principal Investigator directly. The variable descriptions available through ICPSR also include information regarding the source of each variable listed, as does the Data Source field of these metadata.