Please use this identifier to cite or link to this item:
|Title:||Prolonged effectiveness of Norplant® capsule implants: A 7-year study|
Mishell, Jr. D.R.
|Keywords:||Accidental pregnancy rates|
Body weight and unintended pregnancy
Duration of use
Soft tubing implants
|Citation:||Sivin, I., Schechter, J., Mishell, Jr. D.R., Diaz, S., Pavez, M., Biswas, A., Alvarez, F., Brache, V., Darney, P., Holma, P., Wan, L., Kiriwat, O., Abdalla, K., Campodonico, I., Pasquale, S. (2000). 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 <100 kg. Among women aged 18-33 years, the 7-year Norplant pregnancy rates are comparable to the median pregnancy rates of tubal sterilization methods for women of the same age and duration of use. For women aged ≥34 years, without regard to weight at admission, the 7-year effectiveness of soft tubing Norplant equals or surpasses that of tubal sterilization. For continuing implant users, annual pregnancy rates <1.0/100 in years 6 and 7, together with low cumulative pregnancy rates, testify that Norplant capsule implants remain highly effective for 7 years. Copyright (C) 2000 Elsevier Science Inc.|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Aug 7, 2018
WEB OF SCIENCETM
checked on Jul 23, 2018
checked on Jul 13, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.