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The NORPLANT Contraceptive Method: A Report on Three Years of Use
Irving Sivin, Francisco Alvarez-Sanchez, Soledad Diaz, Olivia McDonald, Pentti Holma, Elsimar Coutinho and Dale N. Robertson
Studies in Family Planning
Vol. 13, No. 8/9 (Aug. - Sep., 1982), pp. 258-261
Published by: Population Council
Stable URL: http://www.jstor.org/stable/1965565
Page Count: 4
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NORPLANT subdermal implants used for contraception by 816 women in international clinical trials have proved to be highly effective: the three-year cumulative net, first-segment pregnancy rate was 0.7 per 100 acceptors. The first-segment continuation rate through three years was 45 per 100 initial acceptors, which is comparable to that associated with IUDs.
Studies in Family Planning © 1982 Population Council