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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/7413

Title: Prolonged intrauterine contraception: A seven-year randomized study of the levonorgestrel 20 mcg/day (LNg 20) and the Copper T380 Ag IUDS
Other Titles: Contraception
Authors: Sivin, Irving
Stern, Janet
Coutinho, Elsimar Metzker
Mattos, Carlos E. R.
Mahgoub, Sayed El
Diaz, Soledad
Pavez, Margarita
Alvarez, Francisco
Brache, Vivian
Thevenin, Francisco
Diaz, Juan
Faundes, Anibal
Diaz, M. Margarita
McCarthy, Terence
Mishell Junior, D. R.
Shoupe, Donna
Issue Date: 1991
Publisher: Contraception
Abstract: A levonorgestrel-releasing IUD and the Copper T 380Ag IUD were in randomized comparison for seven years in five clinics. In two other clinics the randomized study was truncated at five years, but use of the Copper T continued. No pregnancies occurred to users of either device in years 6 and 7. Cumulative pregnancy rates were 1.1 per 100 at seven years for the steroid-releasing and 1.4 per 100 for the copper-releasing IUDs. Cumulative rates of PID did not differ between devices. Infection rates appeared to be lowest during the sixth and seventh years of the study. Termination attributable to amenorrhea was the principal contributor to differences in cumulative continuation rates between devices. At the five clinics that carried the comparative study to seven years, cumulative continuation rates were 24.9 per 100 for LNg20 IUD users and 29.4 per 100 for TCu 380Ag users. Women who used either method for periods of five to seven years experienced, on average, marked to mild increases in hemoglobin as compared with levels at admission. The Copper T380 family and the LNg20 IUDs represent the most effective reversible contraceptive methods yet studied in long-term randomized trials.
Description: Texto completo: acesso restrito. p. 473-480
URI: http://www.repositorio.ufba.br/ri/handle/ri/7413
ISSN: 0010-7824
Appears in Collections:Artigos Publicados em Periódicos (Medicina)

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