NSFG

National Survey of Family Growth(English)

  • sheds new light on trends and differentials in such areas as fertility, contraceptive use, infertility and the use of family planning services in the United States. The total fertility rate declined by nearly 50 percent between 1960 and 1973, from 3.6 to 1.9 births per woman, and changed little from then until 1982. It would appear that growing use of the pill, the IUD and sterilization-but principally the pill-is the prime factor in the dramatic decline in unwanted and mistimed births among married couples
  • IUD
  • Pregnancy, Embryology /reproduction
  • https://doi.org/10.2307/2135622