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 National Survey of Family Growth (NSFG) Cycle IV interviews covered respondents' pregnancy histories, past and current use of contraception, ability to bear children, use of medical services for family planning, infertility, and prenatal care, marital histories, and associated cohabiting unions. Data on occupation and labor force participation and on a wide range of social, economic, and demographic characteristics are also presented. Cycle IV added questions about AIDS and cohabitation and asked detailed questions on adoption and sexually transmitted diseases.