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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Long-term contraception with the levonorgestrel 20 mcg/day (LNg 20) and the Copper T 380Ag intrauterine devices: A five-year randomized study
Contraception, Volume 42, No. 4, Year 1990
Notification
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Description
An intrauterine device, releasing approximately 20 μg/day of levonorgestrel (LNg 20), used by 1124 women, was studied in a randomized trial of five years duration in comparison with the Copper T, model TCu 380Ag, in 1121 women. At five years, the gross cumulative pregnancy rate of 1.1±0.5 per 100 among users of the LNg 20 devices was not significantly different from the rate of 1.4±0.4 per 100 experienced by users of the Copper T 380Ag. The steroid-releasing IUD had significantly higher termination rates for expulsion and amenorrhea, a significantly lower termination rate for other menstrual problems and pain, and a lower continuation rate. The five-year continuation rate among women using the TCu 380Ag was 40.6 per 100 as compared with that of 33.0 per 100 among women randomized to the LNg 20 device (P < .001). Terminations attributed to amenorrhea with the LNg device primarily account for differences in continuation. These two Intrauterlne devices are the most effective long-term, reversible IUDs yet reported in the literature. No other contraceptive methods have exhibited such low long-term pregnancy rates in randomized comparative trials. © 1990.
Authors & Co-Authors
Sivin, Irving
United States, New York
The Population Council, Inc.
Mahgoub, Sayed El
Egypt, Cairo
Ain Shams University
McCarthy, Terry
Singapore, Singapore City
National University of Singapore
Mishell, Daniel R.J.
United States, Los Angeles
Gynecology University
Shoupe, Donna
United States, Los Angeles
Gynecology University
Alvarez-Sánchez, Francisco
Dominican Republic, Santo Domingo
Profamilia
Brache, Vivian
Dominican Republic, Santo Domingo
Profamilia
Jimenez, Elvira
Dominican Republic, Santo Domingo
Profamilia
Díaz, Juan José
Brazil, Campinas
Centro de Pesquisas Materno-infantis de Campinas
Faúndes, Aníbal E.
Brazil, Campinas
Centro de Pesquisas Materno-infantis de Campinas
Diaz, M. Margarita
Brazil, Campinas
Centro de Pesquisas Materno-infantis de Campinas
Coutinho, Elsimar Metzker
Brazil, Salvador
Universidade Federal da Bahia
Mattos, Carlos E.R.De
Brazil, Salvador
Universidade Federal da Bahia
Díaz, Soledad
Chile, Santiago
Instituto Chileno de Medicina Reproductive
Pavez, Margarita
Chile, Santiago
Instituto Chileno de Medicina Reproductive
Stern, Janet
United States, New York
The Population Council, Inc.
Statistics
Citations: 189
Authors: 16
Affiliations: 8
Identifiers
Doi:
10.1016/0010-7824(90)90046-X
ISSN:
00107824
Research Areas
Maternal And Child Health
Sexual And Reproductive Health
Participants Gender
Female