Abstract：
:The efficacy and acceptability of a levonorgestrel-releasing intravaginal ring (IVR) for contraception was assessed in a British cohort studied as part of a multicentre, multinational clinical trial performed under the auspices of the World Health Organisation. One-hundred-and-fifty women took part in the study in two UK centres and completed 1417.5 months of method use. Fifty-nine women discontinued use of the IVR before the end of one year giving an overall discontinuation rate of 39.9 per 100 woman-years. The discontinuation for pregnancy with the ring in situ, was 3.0 per 100 woman-years (life table analysis). Menstrual disturbance, vaginal problems and involuntary expulsion resulted in discontinuation rates of 8.9, 8.4 and 1.6 per 100 woman-years, respectively. This method is an acceptable and effective method of contraception for women.
journal_name
Contraceptionjournal_title
Contraceptionauthors
Elder MG,Lawson JP,Elstein M,Nuttall IDdoi
10.1016/0010-7824(91)90040-msubject
Has Abstractpub_date
1991-02-01 00:00:00pages
129-37issue
2eissn
0010-7824issn
1879-0518pii
0010-7824(91)90040-Mjournal_volume
43pub_type
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