National survey of family growth, cycle II, 1976

The National Survey of Family Growth was designed to provide data on fertility, family planning, and related aspects of maternal and child health. Interviews were conducted with a multistage probability sample of women living in the coterminous United States, aged 15-44 years inclusive, who were either currently married, previously married, or never married but had offspring presently living in the household. Approximately 33,000 households were screened to identify the sample of women eligible for the survey. The interval file contains detailed information collected from the 8,611 respondents about their pregnancy histories including the date, outcome and order of all pregnancies, single or multiple births, sex, weight, residence, mortality, breastfeeding of infants, and information on the respondent's periods of non-intercourse, contraceptive methods used, and regularity of use. Other information about the respondent may be found in the NATIONAL SURVEY OF FAMILY GROWTH: COUPLE FILE released earlier. The Couple File contains many summary measures of fertility derived from the Interval File.