Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0010-7824(00)00095-0
Title: Prolonged effectiveness of Norplant® capsule implants: A 7-year study
Authors: Sivin, I.
Mishell Jr., D.R.
Diaz, S.
Biswas, A. 
Alvarez, F.
Darney, P.
Holma, P.
Wan, L.
Brache, V.
Kiriwat, O.
Abdalla, K.
Campodonico, I.
Pasquale, S.
Pavez, M.
Schechter, J.
Keywords: Accidental pregnancy rates
Body weight and unintended pregnancy
Capsule implants
Contraception
Duration of use
Effectiveness
Implants
Levonorgestrel implants
Long-term effectiveness
Norplant®
Soft tubing implants
Issue Date: Mar-2000
Source: Sivin, I., Mishell Jr., D.R., Diaz, S., Biswas, A., Alvarez, F., Darney, P., Holma, P., Wan, L., Brache, V., Kiriwat, O., Abdalla, K., Campodonico, I., Pasquale, S., Pavez, M., Schechter, J. (2000-03). Prolonged effectiveness of Norplant® capsule implants: A 7-year study. Contraception 61 (3) : 187-194. ScholarBank@NUS Repository. https://doi.org/10.1016/S0010-7824(00)00095-0
Abstract: Soft tubing Norplant® contraceptive implants were studied in 1210 women for 7 years to measure the duration of effectiveness and the magnitude of the pregnancy rates over that time. Mean age at enrollment was 27.4 years. Of the enrollees, 42% were US residents. One-sixth (16.1%) weighed ≥70 kg at the time of implant placement. At the end of 5 years, the cumulative pregnancy rate was 1.1/100; at the end of 7 years, it was 1.9/100. No pregnancies occurred to any of the 400 women who enrolled in the study at age ≥30 years and who weighed
Source Title: Contraception
URI: http://scholarbank.nus.edu.sg/handle/10635/132584
ISSN: 00107824
DOI: 10.1016/S0010-7824(00)00095-0
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