caa a22 4500 38639640X CHVBK 20180307112139.0 cr unu---uuuuu 161130s1989 xx s 000 0 eng 10.1017/S0021932000025372 doi S0021932000025372 pii (NATIONALLICENCE)cambridge-10.1017/S0021932000025372 Tsui Amy Ong Carolina Population Center, University of North Carolina, Chapel Hill, USA The dynamics of contraceptive use: an overview [Elektronische Daten] [Amy Ong Tsui] For nearly three decades men and women have increasingly gained the opportunity to control their childbearing with modern contraceptive technologies. In the early 1960s when oral hormonal contraceptives and intrauterine devices first became publicly available in the United States and Europe, the total fertility rate (TFR) in industrialized countries was about 2·7 implying that two-thirds of childbearing couples, some 87 million, were practising contraception. By comparison, in the developing areas, the TFR was 6·1 and only 18% (60 million couples) were contraceptive users. Thirty years later, estimating for 1990, the number of eligible couples practising contraception in the more developed countries (MDCs) is expected to have increased by half, while in the less developed countries (LDCs) the increase is likely to be six times, suggesting as many as 344 million users. Another way to demonstrate the significance of this trend is with a different statistic—that the level of contraceptive use in LDCs in 1990 will exceed half of all couples of childbearing age and be only ten percentage points below the MDC level of 25-30 years ago. Copyright © Cambridge University Press 1989 Journal of Biosocial Science Cambridge University Press 21/S11(1989), 1-7 0021-9320 21:S11<1 1989 21 JBS https://doi.org/10.1017/S0021932000025372 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0021932000025372 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Tsui Amy Ong Carolina Population Center, University of North Carolina, Chapel Hill, USA NATIONALLICENCE 773 0- Journal of Biosocial Science Cambridge University Press 21/S11(1989), 1-7 0021-9320 21:S11<1 1989 21 JBS CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge