National Survey of Family Growth, Cycle IV, 1990 Telephone Reinterview

The NSFG Cycle IV telephone reinterviews have been divided into two files. The Respondent File (Part 1) contains one record for each woman in the survey, while the Interval File (Part 2) contains one record for each completed pregnancy experienced by a woman in the survey. An interval can be defined as any of the following: the time between a first intercourse at last contact (in 1988) and a pregnancy that ended after last contact, or the time between a pregnancy that ended before last contact and one that was in progress at the time of the interview. Part 1 offers data on the respondent's marital history/update, education, family background, sex education, births and pregnancies, first sexual intercourse, sterilizing operations, contraceptive history/update, family planning services, infertility services, births intended and expected, adoption, sexually transmitted diseases/AIDS, religion, race/ethnicity, employment/occupation, income, and insurance. Part 2 supplies information on outcomes of pregnancies and other pregnancy-related information, use of birth control methods during intervals, and "wantedness" of pregnancies.