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Integrated Fertility Survey Series, Release 7, 1955-2002 [United States] (ICPSR 26344)

Released/updated on: 2015-06-18

Geographic coverage: United States

Time period: 1955-01-01--2002-01-01

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.

Curated

Survey of Holt Adoptees and Their Families, 2005 (ICPSR 4637)

Released/updated on: 2007-03-26

Geographic coverage: United States

This study, conducted January 2004 to June 2006, was undertaken to assess the health status, educational attainment, and income of adult Korean-American adoptees and their adoptive families. The study focused on families who adopted a Korean-American child through Holt International Children's Services from 1970 to 1980. The principal investigator hoped to identify the effects of large-scale changes in family environment on children's outcomes using data on adults who were adopted in infancy. Korean-American adoptees placed through Holt International Children's Services had been quasi-randomly assigned to these families in infancy using a queuing (first-come, first-served) policy. One adoptive parent from each family was surveyed, as well as a small subset of adult adoptees, and each case represented an adopted or non-adopted child in the family. Adoptive parents were asked to give their age, sex, marital status, occupation, education level, household income, height, weight, tobacco and alcohol usage, and the number of children they had. Adoptive parents also gave information on their adopted and non-adopted children's age, sex, marital status, education level, income, weight, height, undergraduate institution, number of children, and whether their children smoked, drank alcohol, or had asthma. For adopted children, parents gave the arrival age of the child and whether the child was adopted through Holt International. Adoptive parents also indicated whether they were aware of and had used services such as workshops and referral services offered by Holt. Since the survey relied on parent reports of their adult children's outcomes, surveys were also sent to a small subset of adoptees. Their surveys included the same questions asked of their adoptive parents, as well as the adoptee's value of assets, religion, and frequency of religious attendance. The study also contained information on adoptees' birth parents obtained from Holt International's administrative records and constructed variables that analyzed household composition, population characteristics, and the education and health status of the adoptive family.

Curated

Simple Crosstabs

Swedish Adoption/Twin Study on Aging (SATSA), 1984, 1987, 1990, 1993, 2004, 2007, and 2010 (ICPSR 3843)

Released/updated on: 2015-05-13

Geographic coverage: Sweden, Global

Time period: 1984-01-01--2010-01-01

The Swedish Adoption/Twin Study on Aging (SATSA) was designed to study the origins of individual differences in aging and the environmental and genetic factors that are involved. SATSA began in 1984, and six additional waves were conducted in 1987, 1990, 1993, 2004, 2007, and 2010. The questionnaire was initially sent to all twins from the Swedish Twin Registry who were separated at an early age and raised apart; the survey was also administered to a control sample of twins who were raised together. The respondents were surveyed on items that included health status, how they were raised, work environment, alcohol consumption, and dietary and smoking habits, as well as questions about personality and attitudes; this information comprised the first component. The second component was collected from a subsample composed of 150 pairs of twins raised apart and 150 pairs of twins raised together. This subsample participated in seven waves of in-person testing, which included a health examination, structured interviews, and tests on functional capacity, cognitive abilities, and memory. The data are represented according to questionnaire and time number, and correspond to each wave/year: Questionnaire 1 and In-Person Testing Time 1 were in 1984; Questionnaire 2 and In-Person Testing Time 2 were in 1987; Questionnaire 3 and In-Person Testing Time 3 were in 1990; Questionnaire 4 and In-Person Testing Time 4 were in 1993; Questionnaire 5 was in 2003; In-Person Testing Time 5 was in 2004; Questionnaire 6 and In-Person Testing Time 6 were in 2007; In-Person Testing Time 7 was in 2010. The Administrative and Cognitive datasets include data from all years/waves. The Smell Survey dataset only includes data from 1990. No years were specified for the Contact measures and Separation measures datasets. Demographic and background information includes age, sex, education, family history, household composition and employment.