Integrated Fertility Survey Series, Release 7, 1955-2002 [United States]

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. Additional information about the Integrated Fertility Survey Series can be found on the IFSS Web site.

《综合生育调查系列》（Integrated Fertility Survey Series，简称 IFSS）汇聚了来自十个基础组成部分研究的家庭与生育数据：包括 1955 年和 1960 年的《美国家庭成长》研究；1965 年和 1970 年的《国家生育调查》；以及 1973 年、1976 年、1982 年、1988 年、1995 年和 2002 年的《国家家庭成长调查》。首版发布包含了来自所有十个组成部分研究的所有受访者的调和化社会人口变量，涵盖了婚姻状况、种族与民族、教育、收入、迁移、宗教及原籍地等相关内容。第二版发布增添了调和化的配偶/伴侣社会人口变量以及调和化的联合历史变量。第三版则增加了调和化的怀孕、领养、非生物学子女及月经变量。第四版发布增添了调和化的生育变量。第五版增加了怀孕间隔文件，该文件包含了 217,128 条怀孕记录，涉及所有受访者的怀孕信息。第六版发布向受访者和怀孕间隔文件中添加了比较样本变量，并新增了避孕日历文件。该文件包含了 53,317 条记录，涉及避孕类型和使用频率的信息。第七版增加了与避孕知识、避孕使用、生育控制及家庭规划服务、性史、不孕及绝育手术相关的变量，并加入了社会人口和联合历史变量。此外，第三版及之前的补全数据也被包含在内。更多关于《综合生育调查系列》的信息可在 IFSS 网站上查阅。