Doctors working in general practice and at family planning clinics throughout the UK who collaborate in the UK Family Planning and Reproductive Health Research Network were responsible for the fitting of 692 Levonorgestrel Intra-uterine Systems (LNG IUS). This study was undertaken to determine the performance of the LNG IUS in British women in routine clinical use.
The 12 months cumulative life-table event rates were: pregnancy 0.6, expulsion 4.5. The continuation rate was 70.6. Removals were also required for side effects, which may be due to absorbed levonorgestrel, the removal rate being 7.4. Positive effects include effective contraception and considerably reduced quantity of bleeding for most participants.
A need was identified to counsel women about the early bleeding problems, including the possibility of oligomenorrhoea or amenorrhoea. This is considered to be very important as it will help women to persevere so that they can enjoy the longer-term benefits.
- intra-uterine contraception
- levonorgestrel intra-uterine system
- 12-month findings
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