Search results

Tsogolo La Thanzi (TLT) is a decade-long population-based cohort study of young women and men from Balaka, Malawi. Tsogolo La Thanzi means "Health Futures" in Chichewa, Malawi's most widely spoken language. TLT has followed young adults (ages 15-25 at enrollment, 15-35 inclusive) as they navigate relationships and childbearing within the context of a generalized AIDS epidemic. TLT enrolled more than 3000 individuals and collected 11 waves of data, covering a 10-year period (2009-2019) that spans massive changes in the HIV treatment context in Malawi as well as the ages of peak incidence and peak fertility for female respondents.

This particular study contains the data collected from an additional survey referred to as Tsogolo La Thanzi 3 (TLT-3), fielded in 2019, following the release of ten waves of data collected between 2009 and 2015. Unlike the past where the sample included male partners, this third round of data collection focused solely on women.

TLT-3 covered many of the same topics found in the original TLT multi-wave project such as: relationships, religion, HIV/AIDS, pregnancy, marriage, sexually transmitted diseases, and future expectations.

Additionally, modules specific to TLT-3 included: kinship, mental health, and trust in clinics. These data can be used cross-sectionally or can be merged with previous waves to facilitate analyses of a full ten years of social change in Balaka township and across the life course.

The Toledo Adolescent Relationships Study (TARS) explores the relationship qualities and the subjective meanings that motivate adolescent behavior. More specifically, this study seeks to examine the nature and meaning of adolescent relationship experiences (e.g. with family, peers, and dating partners) in an effort to discover how experiences associated with age, gender, race, and ethnicity influence the meaning of dating relationships. The study further investigates the relative impact of dating partners and peers on sexual behavior and contraceptive practices, as well as involvement in other problem behaviors that can contribute independently to sexual risk-taking. The longitudinal design of the Toledo Adolescent Relationships Study (TARS) includes a schedule of follow-up interviews occurring one, three, five, ten, and about eighteen years after the initial interview. Additional waves have since been conducted.

Wave 2 of TARS includes data from follow-up surveys of adolescent respondents conducted approximately one year after the initial TARS survey. These data are accompanied by a series of weights for use in secondary analysis.

The Toledo Adolescent Relationships Study (TARS) explores the relationship qualities and the subjective meanings that motivate adolescent behavior. More specifically, this study seeks to examine the nature and meaning of adolescent relationship experiences (e.g. with family, peers, and dating partners) in an effort to discover how experiences associated with age, gender, race, and ethnicity influence the meaning of dating relationships. The study further investigates the relative impact of dating partners and peers on sexual behavior and contraceptive practices, as well as involvement in other problem behaviors that can contribute independently to sexual risk-taking. The longitudinal design of the Toledo Adolescent Relationships Study (TARS) includes a schedule of follow-up interviews occurring one, three, five, ten, and about eighteen years after the initial interview. Additional waves have since been conducted.

Wave 1 of TARS includes detailed data collected from both parents and adolescent respondents about their relationship experiences, including self-reported data from parents, parent-reported data about adolescent respondents, and self-reported data from adolescent respondents. These data are available as a combined dataset organized by adolescent respondent.

The Toledo Adolescent Relationships Study (TARS) includes several waves of data collection available through ICPSR. Please see the ICPSR Series page for available studies.

The Malawi Longitudinal Study of Families and Health (MLSFH) is one of very few long-standing longitudinal cohort studies in a poor Sub-Saharan African (SSA) context. It provides a record of more than 25 years of demographic, socioeconomic, and health conditions in one of the world's poorest countries. Initial data collection began in 1998 under the Malawi Diffusion and Ideational Change Project (MDICP) to examine social networks and fertility decisions among married women and their husbands. While this initial study population is still followed, the scope of the project and population expanded to a broader focus on social and contextual determinants of health across the lifecourse in Malawi.

This collection includes Rounds 1 through 9 of the MLSFH, as well as supplemental data collections from Sexual Diaries, Migration Follow-Ups (MHM), a Biomarker Survey, Adverse Childhood Experiences (ACE), and a Benefits of Knowledge Intervention Survey. The MLSFH Data web page contains additional information and cohort profiles for all MLSFH data collections, including those not made available through ICPSR-DSDR.

Downloads of Add Health require submission of the following information, which is shared with the original producer of Add Health: supervisor name, supervisor email, and reason for download. A Data Guide for this study is available as a web page and for download.

The National Longitudinal Study of Adolescent to Adult Health (Add Health), 1994-2018 [Public Use] is a longitudinal study of a nationally representative sample of U.S. adolescents in grades 7 through 12 during the 1994-1995 school year. The Add Health cohort was followed into young adulthood with four in-home interviews, the most recent conducted in 2008 when the sample was aged 24-32. 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, peer groups, and romantic relationships.

Add Health Wave I data collection took place between September 1994 and December 1995, and included both an in-school questionnaire and in-home interview. The in-school questionnaire was administered to more than 90,000 students in grades 7 through 12, and gathered information on social and demographic characteristics of adolescent respondents, education and occupation of parents, household structure, expectations for the future, self-esteem, health status, risk behaviors, friendships, and school-year extracurricular activities. All students listed on a sample school's roster were eligible for selection into the core in-home interview sample. In-home interviews included topics such as health status, health-facility utilization, nutrition, peer networks, decision-making processes, family composition and dynamics, educational aspirations and expectations, employment experience, romantic and sexual partnerships, substance use, and criminal activities. A parent, preferably the resident mother, of each adolescent respondent interviewed in Wave I was also asked to complete an interviewer-assisted questionnaire covering topics such as inheritable health conditions, marriages and marriage-like relationships, neighborhood characteristics, involvement in volunteer, civic, and school activities, health-affecting behaviors, education and employment, household income and economic assistance, parent-adolescent communication and interaction, parent's familiarity with the adolescent's friends and friends' parents.

Add Health data collection recommenced for Wave II from April to August 1996, and included almost 15,000 follow-up in-home interviews with adolescents from Wave I. Interview questions were generally similar to Wave I, but also included questions about sun exposure and more detailed nutrition questions. Respondents were asked to report their height and weight during the course of the interview, and were also weighed and measured by the interviewer.

From August 2001 to April 2002, Wave III data were collected through in-home interviews with 15,170 Wave I respondents (now 18 to 26 years old), as well as interviews with their partners. Respondents were administered survey questions designed to obtain information about family, relationships, sexual experiences, childbearing, and educational histories, labor force involvement, civic participation, religion and spirituality, mental health, health insurance, illness, delinquency and violence, gambling, substance abuse, and involvement with the criminal justice system. High School Transcript Release Forms were also collected at Wave III, and these data comprise the Education Data component of the Add Health study.

Wave IV in-home interviews were conducted in 2008 and 2009 when the original Wave I respondents were 24 to 32 years old. Longitudinal survey data were collected on the social, economic, psychological, and health circumstances of respondents, as well as longitudinal geographic data. Survey questions were expanded on educational transitions, economic status and financial resources and strains, sleep patterns and sleep quality, eating habits and nutrition, illnesses and medications, physical activities, emotional content and quality of current or most recent romantic/cohabiting/marriage relationships, and maltreatment during childhood by caregivers. Dates and circumstances of key life events occurring in young adulthood were also recorded, including a complete marriage and cohabitation history, full pregnancy and fertility histories from both men and women, an educational history of dates of degrees and school attendance, contact with the criminal justice system, military service, and various employment events, including the date of first and current jobs, with respective information on occupation, industry, wages, hours, and benefits. Finally, physical measurements and biospecimens were also collected at Wave IV, and included anthropometric measures of weight, height and waist circumference, cardiovascular measures such as systolic blood pressure, diastolic blood pressure, and pulse, metabolic measures from dried blood spots assayed for lipids, glucose, and glycosylated hemoglobin (HbA1c), measures of inflammation and immune function, including High sensitivity C-reactive protein (hsCRP) and Epstein-Barr virus (EBV).

Wave V data collection took place from 2016 to 2018, when the original Wave I respondents were 33 to 43 years old. For the first time, a mixed mode survey design was used. In addition, several experiments were embedded in early phases of the data collection to test response to various treatments. A similar range of data was collected on social, environmental, economic, behavioral, and health circumstances of respondents, with the addition of retrospective child health and socio-economic status questions. Physical measurements and biospecimens were again collected at Wave V, and included most of the same measures as at Wave IV.

The overall goal of Wave VI was to better understand life course trajectories, determinants, and consequences of critical dimensions of aging, health, and health disparities among U.S. early midlife adults. Data collection took place from 2022 to 2025, with participants between the ages of 39 and 51, with an average age of 44. Beyond longitudinal survey measures, newly added questions included those on cumulative stress, discrimination, despair, work-life balance, memory, physical limitations, and caregiving. Continuing from previous waves, home exams collected physical measurements and biospecimens with most of the same measures as Wave V.

Tsogolo la Thanzi (TLT) is a longitudinal study in Balaka, Malawi designed to examine how young people navigate reproduction in an AIDS epidemic. Tsogolo la Thanzi means "Healthy Futures" in Chichewa, Malawi's most widely spoken language. New data are being collected to develop better understandings of the reproductive goals and behavior of young adults in Malawi -- the first cohort to never have experienced life without AIDS. To understand these patterns of family formation in a rapidly changing setting, TLT used the following approach: an intensive longitudinal design where respondents are interviewed every fourth months at TLT's centralized research center. Data collection began in May of 2009 and was completed in June of 2012. To assess changes on a longer time-horizon, a follow-up survey referred to as Tsogolo la Thanzi 2 (TLT-2) was fielded between June and August of 2015.

The Couples Data include supplementary data intended to link partners across the full TLT-1 and TLT-2 time period for the purpose of conducting couple-level analyses.

In September 2020, the Office of Population Affairs (OPA) funded an exploratory implementation and outcome study to understand the components of REAL Essentials Advance (REA), a popular relationship education program intended for youth in high school.

The REA study occurred over two school years (2021-22 and 2022-23) and involved 27 schools with a total of 1,301 youth participating in cohorts during spring and fall 2022. Each school implemented a different collection of lessons (a scope and sequence) from the REA program, and a total of 40 different scope and sequences were observed in the study. The expectation was that variation in student experiences of lessons across these scopes and sequences would produce variation in levels of outcome improvement (e.g., a school that primarily offered lessons that focused on emotional regulation would tend to show larger improvement in emotional regulation outcomes than a school that did not offer these lessons).

The National Family Health Survey (NFHS) is a large-scale, multi-round survey providing information on fertility, infant and child mortality, the practice of family planning, maternal and child health, reproductive health, nutrition, anemia, and utilization and quality of health and family planning services in India.

The First National Family Health Survey (NFHS-1) was conducted in 1992-93. The survey collected extensive information on population, health, and nutrition, with an emphasis on women and young children. Eighteen Population Research Centres (PRCs), located in universities and institutes of national repute, assisted IIPS in all stages of conducting NFHS-1. All the state-level and national-level reports for the survey have already been published (48 reports in all).

The Second National Family Health Survey (NFHS-2) was conducted in 1998-99 in all 26 states of India with added features on the quality of health and family planning services, domestic violence, reproductive health, anemia, the nutrition of women, and the status of women. The results of the survey are currently being published.

The Third National Family Health Survey (NFHS-3) was carried out in 2005-2006. Eighteen Research Organizations including five Population Research Centres carried out the survey in 29 states of India. The funding for NFHS-3 is provided by USAID, DFID, the Bill and Melinda Gates Foundation, UNICEF, UNFPA, and MOHFW, GOI., ICF (USA), is providing technical assistance for NFHS-3, and the National AIDS Control Organization (NACO) and the National AIDS Research Institute (NARI) are providing technical assistance for the HIV component.

The 2015-16 National Family Health Survey (NFHS-4), the fourth in the NFHS series, provides information on population, health, and nutrition for India and each state and union territory. All four NFHS surveys have been conducted under the stewardship of the Ministry of Health and Family Welfare (MoHFW), Government of India. MoHFW designated the International Institute for Population Sciences (IIPS), Mumbai, as the nodal agency for all of the surveys. Funding for NFHS-4 was provided by the United States Agency for International Development (USAID), the United Kingdom Department for International Development (DFID), the Bill and Melinda Gates Foundation (BMGF), UNICEF, UNFPA, the MacArthur Foundation, and the Government of India. ICF provided technical assistance through The DHS Program, which is funded by USAID. Assistance for the HIV component of the survey was provided by the National AIDS Control Organization (NACO) and the National AIDS Research Institute (NARI), Pune. NFHS-4 fieldwork was conducted by 14 field agencies, and seven laboratories conducted the HIV testing (see Appendix Table XX). Data collection took place in two phases from 1 January 2015 to 31 December 2016. NFHS-4 was designed to provide information on sexual behaviour; HIV/AIDS knowledge, attitudes, and behaviour; and domestic violence only at the state level (in the state module), while most indicators in the district module are reported at the district level. The primary objective of the 2015-16 National Family Health Survey is to provide essential data on health and family welfare, as well as data on emerging issues in these areas. The clinical, anthropometric, and biochemical (CAB) component of NFHS-4 is designed to provide vital estimates of the prevalence of malnutrition, anaemia, hypertension, HIV, and high blood glucose levels through a series of biomarker tests and measurements.

The National Family Health Survey 2019-21 (NFHS-5), the fifth in the NFHS series, provides information on population, health, and nutrition for India, each state/union territory (UT), and for 707 districts as on March 31 st 2017. All five NFHS surveys have been conducted under the stewardship of the Ministry of Health and Family Welfare (MoHFW), Government of India. MoHFW designated the International Institute for Population Sciences (IIPS), Mumbai, as the nodal agency for all the rounds of NFHS. Funding for NFHS-5 was provided by the MoHFW, Government of India. ICF, USA provided technical assistance through the Demographic and Health Surveys (DHS) Program, which is funded by USAID. Assistance for the Dried Blood Sample (DBS) component of the survey was provided by the Indian Council of Medical Research (ICMR) and the National AIDS Research Institute (NARI), Pune. NFHS-5 fieldwork for India was conducted in two phases-- Phase-I from 17 June 2019 to 30 January 2020 covering 17 states and 5 UTs and Phase-II from 2 January 2020 to 30 April 2021 covering 11 states and 3 UTs -- by 17 Field Agencies and gathered information from 636,699 households, 724,115 women, and 101,839 men. Like NFHS-4, NFHS-5 also provides district-level estimates for many important indicators. The contents of NFHS-5 are similar to NFHS-4 to allow comparisons over time. However, NFHS-5 includes some new topics, such as preschool education, disability, access to a toilet facility, death registration, bathing practices during menstruation, and methods and reasons for abortion. The scope of clinical, anthropometric, and biochemical testing (CAB) has also been expanded to include measurement of waist and hip circumferences, and the age range for the measurement of blood pressure and blood glucose has been expanded. However, HIV testing was not included in NFHS-5. The NFHS-5 sample was designed to provide national, state/union territory (UT), and district level estimates of various indicators covered in the survey. However, estimates of indicators of sexual behaviour; husband's background and woman's work; HIV/AIDS knowledge, attitudes, and behaviour; and domestic violence are available only at the state/union territory (UT) and national level.

To request this data, fill out: International Institute for Population Sciences Data Request Form.

• Pregnancy history and outcomes
• Contraceptive use and decision-making
• Antenatal and postnatal care
• Partner involvement in reproductive health

• Control over earnings and assets
• Household decision-making
• Freedom of movement
• Digital access and autonomy

• Physical, emotional and sexual violence
• Help-seeking behaviors
• Community safety
• Support systems

• Group membership and leadership
• Social support networks
• Political participation
• Community involvement

The Chitwan Valley Family Study (CVFS) is a comprehensive family panel study of individuals, households, and communities in the Chitwan Valley of Nepal. The study was initially designed to investigate the influence of changing community and household contexts on population outcomes such as marital and childbearing processes. Over time, the goals of the study expanded to investigate family dynamics, intergenerational influences, child health, migration, labor force participation, attitudes and beliefs, mental health, agricultural production, environmental change, and many other topics. The data include full life histories for more than 10,000 individuals, tracking and interviews with all migrants, continuous measurement of community change, over 25 years of demographic event registry, and many other data collections. For additional information regarding the Chitwan Valley Family Study, please visit the Chitwan Valley Family Study Website. A Data Guide for this study is available as a web page and for download.

Principal Investigators

• William G. Axinn, University of Michigan
• Dirgha Ghimire, University of Michigan
• Jordan Smoller, Massachusetts General Hospital

These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.

This study explores the relationship qualities and the subjective meanings that motivate adolescent behavior. More specifically, this study seeks to examine the nature and meaning of adolescent relationship experiences (e.g., with family, peers, and dating partners) in an effort to discover how experiences associated with age, gender, race, and ethnicity influence the meaning of dating relationships. The study further investigates the relative impact of dating partners and peers on sexual behavior and contraceptive practices, as well as involvement in other problem behaviors that can contribute independently to sexual risk taking.

The longitudinal design of the Toledo Adolescent Relationships Study (TARS) includes a schedule of follow-up interviews occurring one, three, and five years after the initial interview. Four prior waves of data have been collected (2001, 2002, 2004, and 2006). Data were collected from adolescent respondents through structured in-home interviews utilizing laptop computers.

In addition, the fifth wave, conducted in 2011 when the participants were young adults, builds on prior waves by adding quantitative and qualitative assessments of intimate partner violence (IPV).

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.

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 Annual Health Survey (AHS), conducted by the Government of India between July 2010 and May 2013, investigates maternal and child health in nine states: Assam, Bihar, Chhattisgarh, Jharkhand, Madhya Pradesh, Orissa, Rajasthan, Uttarakhand, and Uttar Pradesh. These states constitute about 70 percent of neonatal deaths in India and about one-in-five neonatal deaths globally. The AHS consists of a three-round panel that interviewed over 4 million households in each round, as well as a one-time Clinical, Anthropometric, and Bio-Chemical Survey (CAB). The data were originally released to the public in 2015 as a set of 45 .csv files. The .csv files are included in a restricted-use zipped package as part of the ICPSR release (see dataset 21).

The survey focused on topics such as household composition, caste, fertility, family planning, pre- and post-natal care, breastfeeding, infant mortality, illness, disease, disability, and health care practices. Demographic information includes sex, age, education, occupation, marital status, household size, and religion. The CAB files contain biometric data including but not limited to height, weight, blood pressure, hemoglobin, pulse, and blood glucose.

Potential data users should note that the public-use and restricted-use versions of the datasets are the same except for the masking of day component variables for certain dates in the public-use versions of the files (please see the Description of Variables section for full details). Therefore, only researchers with a limited set of research questions that require full birth, marriage, and death dates will need to apply for the restricted-use versions of the data files.

Additionally, because the final data files are very large and potentially very time consuming to analyze on personal computers, researchers have the option to download ten-percent samples of each file (see datasets 3, 4, 7, 8, 11, 12, 15, 16, 19, and 20). These samples contain the same variables as the original files but only ten percent of the records. The samples were determined by taking a randomly selected ten percent of households in each district. P.I. codebooks were not produced for these samples. Please note that the ten-percent samples for each dataset were selected independently, so it is not advised to merge across datasets within the AHS using these samples, as the match rates will be very low.

This catalog record includes detailed variable-level descriptions, enabling data discovery and comparison. The data are not archived at ICPSR. Users should consult the data owners (via the National Survey of Family Growth (NSFG) website) directly for details on obtaining the data.

The National Survey of Family Growth (NSFG) gathers information on pregnancy and births, marriage and cohabitation, infertility, use of contraception, family life, and general and reproductive health. The survey sample is designed to produce national data, not estimates for individual states. Beginning in 1973, NSFG was designed to be nationally representative of ever-married women 15-44 years of age in the civilian, non-institutionalized population of the United States (household population). Later sample changes to NSFG include:

• Interviewing women aged 15-44 regardless of marital experience (1982)
• Interviewing an independent sample of men aged 15-44 (2002)
• Expanding the age range for women and men to 15-49 (2015)
• • Grandparent-Parent-Adult Child triplets: ~1,400

For the 2011-2019 continuous interviewing period, four sets of 2-year public-use data files were released:

• 2011-2013 NSFG: 10,416 respondents aged 15-44 (5,601 women and 4,815 men)
• 2013-2015 NSFG: 10,205 respondents aged 15-44 (5,699 women and 4,506 men)
• 2015-2017 NSFG: 10,094 respondents aged 15-49 (5,554 women and 4,540 men)
• 2017-2019 NSFG: 11,347 respondents aged 15-49 (6,141 women and 5,206 men)

Public-use data files and related documentation, including questionnaires, codebooks, and design and operations reports, can be found for each release on the NSFG Questionnaires, Datasets, and Related Documentation page.

The India Human Development Survey (IHDS) is a nationally representative, multi-topic survey of 42,152 households in 1,503 villages and 971 urban neighborhoods across India. Data were originally collected from households during 2004-2005. Interviewers returned in 2011-2012 to re-interview these same households. During both waves of data collection, two one-hour interviews were conducted covering a large range of topics. The goal of the IHDS program is to document changes in the daily lives of Indian households in a society undergoing rapid transition.

This particular data collection merges the two waves of IHDS (known as IHDS and IHDS-II) into a harmonized pattern from the perspective view points of individuals, households, and eligible women. The data are presented in three different data formats: cross-sectional, wide, and long to facilitate a broader range of analysis options. Due to the specificity of geography and inclusion of sensitive / identifying topics there is a public-use and restricted-use rendition for each of the nine data files.

Tsogolo la Thanzi (TLT) is a longitudinal study in Balaka, Malawi designed to examine how young people navigate reproduction in an AIDS epidemic. Tsogolo la Thanzi means "Healthy Futures" in Chichewa, Malawi's most widely spoken language. New data is being collected to develop better understandings of the reproductive goals and behavior of young adults in Malawi -- the first cohort to never have experienced life without AIDS. To understand these patterns of family formation in a rapidly changing setting, TLT used the following approach: an intensive longitudinal design where respondents are interviewed every fourth months at TLT's centralized research center. Data collection began in May of 2009 and was completed in June of 2012. To assess changes on a longer time-horizon, a follow-up survey referred to as Tsogolo la Thanzi 2 (TLT-2) was fielded between June and August of 2016. Please see ICPSR 36863 for the baseline dataset.

At each wave, women who tested as positive for pregnancy were given a questionnaire asking additional questions about that pregnancy. This dataset includes women from all waves.

A Data Guide for this study is available as a web page and for download. The India Human Development Survey-II (IHDS-II), 2011-12 is a nationally representative, multi-topic survey of 42,152 households in 1,503 villages and 971 urban neighborhoods across India. These data are mostly re-interviews of households interviewed for IHDS-I (ICPSR 22626) in 2004-05. Two one-hour interviews in each household covered topics concerning health, education, employment, economic status, marriage, fertility, gender relations, social capital, village infrastructure, wage levels, and panchayat composition. Children aged 8-11 completed short reading, writing and arithmetic tests.

The IHDS-II data are assembled in fourteen datasets:

1. Individual
2. Household
3. Eligible Women
4. Birth History
5. Medical Staff
6. Medical Facilities
7. Non Resident
8. School Staff
9. School Facilities
10. Wage and Salary
11. Tracking
12. Village
13. Village Panchayat
14. Village Respondent

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.

The Relationship Dynamics and Social Life (RDSL) Study aims to investigate the types of romantic relationships that produce early and/or unintended pregnancies. The study is based on a representative sample of 1,003 women aged 18 to 22 residing in Genesee County, Michigan. The research team focused on women ages 18 to 22 because these ages are characterized by the highest rates of unintended pregnancy, as well as significant instability and change in the dynamic determinants of unintended pregnancy.

Data collection for the baseline survey was conducted March 2008 through July 2009, and consisted of a 60-minute face-to-face interview to gather information on respondent attitudes and behaviors, intimate and familial relationships, contraceptive use, reproductive history, and socio-demographic characteristics.

The baseline survey was followed by a series of three supplemental surveys administered over a two-and-a-half year period between May 2009 and August 2011. These surveys covered a wide range of topics, including family living arrangements, socioeconomic status, employment, media consumption, mental health, violence, personality traits, assumptions and knowledge regarding various forms of contraception, and attitudes and opinions about social life. The second major component of the RDSL features journal data collected concurrently with the supplemental surveys (please see ICPSR 34626 to access the journal component description and datasets). Please consult the crosswalk to determine which level of restriction is required for research.

Demographic information collected for the baseline and supplemental surveys includes respondent age, race, ethnicity, religious affiliation, marital status, education, employment status, income, and household size and composition.

The Relationship Dynamics and Social Life (RDSL) Study aims to investigate the types of romantic relationships that produce early and/or unintended pregnancies. The study is based on a representative sample of 1,003 women aged 18 to 22 residing in Genesee County, Michigan. The research team focused on women ages 18 to 22 because these ages are characterized by the highest rates of unintended pregnancy, as well as significant instability and change in the dynamic determinants of unintended pregnancy.

Data collection for the baseline survey was conducted March 2008 through July 2009, and consisted of a 60-minute face-to-face interview to gather information on respondent attitudes and behaviors, intimate and familial relationships, contraceptive use, reproductive history, self-reported height and weight, and socio-demographic characteristics.

The baseline survey was followed by a series of three supplemental surveys administered over a two-and-a-half year period between May 2009 and August 2011. These surveys covered a wide range of topics, including family living arrangements, socioeconomic status, employment, media consumption, mental health, violence, personality traits, assumptions and knowledge regarding various forms of contraception, and attitudes and opinions about social life. The second major component of the RDSL features journal data collected concurrently with the supplemental surveys. The focus of the journal data collection was to gather dynamic, prospective measurements of pregnancy desires and contraceptive use, as well as relationship attributes such as commitment, sexual intimacy, and decision-making regarding contraception. Please consult the crosswalk to determine which level of restriction is required for research.

Demographic information collected includes respondent age, race, ethnicity, religious affiliation, marital status, education, employment status, income, and household size and composition.

The Eurobarometer series is a unique cross-national and cross-temporal survey program conducted on behalf of the European Commission. These surveys regularly monitor public opinion in the European Union (EU) member countries and consist of standard modules and special topic modules. The standard modules address attitudes towards European unification, institutions and policies, measurements for general socio-political orientations, as well as respondent and household demographics. The special topic modules address such topics as agriculture, education, natural environment and resources, public health, public safety and crime, and science and technology.

This round of Eurobarometer surveys covers the following special topics: (1) vocational education and training (VET), (2) social situations and expectations, (3) family planning, (4) internal security of the European Union (EU), and (5) climate change. Questions pertain to level of education completed, work sector, opinions about and experience with VET, life satisfaction, expectations for the next 12 months, and life situations compared to 5 years ago. Also, opinions were collected on challenges to the security of the EU, as well as renewable energy in 2050.

Demographic and other background information collected includes age, gender, nationality, marital status and parental relations, occupation, age when stopped full-time education, household composition, ownership of a fixed or mobile telephone and other goods, difficulties in paying bills, level in society, and Internet use. In addition, country-specific data includes type and size of locality, region of residence, and language of interview (select countries).

The Vietnam Longitudinal Survey, 1995-1998 (VLS) sought to analyze the impact of changing household economies on demographic phenomena such as marriage, pregnancy, and family composition in Vietnam. The VLS was the first longitudinal sociological survey and one of the largest sociological surveys ever conducted in Vietnam. The study was part of a long-term collaborative research program between the Institute of Sociology (IOS), Hanoi - Vietnam, and Professor Charles Hirschman from the University of Washington-Seattle.

The VLS emerged as the result of extensive exchange between IOS researchers and Charles Hirschman following their first collaborative project, the Vietnam Life History Survey (VLHS), which was conducted in 1991 (ICPSR 31101). During the 1994-95 academic year, Hirschman and IOS jointly developed a detailed plan for the VLS based on their previous experiences from the VLHS. Ten communes in the provinces of Nam Ha and Ninh Binh were selected for the VLS survey using probability sampling methods. In July 1995, the pretest survey was carried out in the Dai Xuyen commune approximately 40km south of Hanoi. Baseline interviews were conducted from September to November of 1995, with 1,855 households and 4,464 individuals surveyed for the first round. The second round of interviewing was carried out from August to September of 1996, with 1,820 households and 4,340 individuals successfully re-interviewed. The third round was carried out in July and August of 1997, with 1811 households and 4309 individuals re-interviewed. The fourth and final round of the survey was conducted in July and August of 1998, with a final household count of 1,795 and 4,222 individual respondents.

Data were collected at the individual and household level for each survey year. Household-level variables measured several household attributes, including size of land and living space, house construction materials, number of rooms and amenities, ownership of appliances, vehicles, and livestock, types and amount of agricultural production. Individual-level variables measured traditional courtship and wedding customs, familial marriage negotiations, marital history, pregnancy and birth history, as well as experiences with abstinence, various contraceptive methods, abortion, pregnancy, and breastfeeding. Household-level demographic variables provide information on household composition, including number of members, age, sex, ethnicity, education level, marital status, and occupation of each household member, as well as total household income. Individual-level demographic variables include age, sex, ethnicity, religion, education level, occupation, job history, income, marital status, and information on children of respondents.

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.

The ethnographic fieldwork portion of the project - interviews with women of reproductive age, and when available their partners and mothers - was initiated and completed in 2006. For each of four Italian cities (Padua, Bologna, Cagliari, and Naples) studied ethnographically by trained anthropologists, both a working-class and a middle-class neighborhood were identified. These interviews (349 in number) have been transcribed without identifiers. All interviews have been coded and assigned 'attributes' (or nominative variables, such as gender, civil/religious status of marriage, etc.) using the qualitative data analysis software (NVIVO), and these reside in secure electronic project folders. This large body of qualitative interview data is now complete and ready for use across the international collaborative units. Preliminary research reveals the particular significance of family ties in Italy, the fundamental role played by gender systems, and the specific cultural, socio-economic, and politic contexts in which fertility behavior and parenting are embedded.

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.