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Contraception. 2009 Jun;79(6):433-8. doi: 10.1016/j.contraception.2008.12.001. Epub 2009 Jan 17.

A nationwide cohort study of the use of the levonorgestrel intrauterine device in New Zealand adolescents.

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Dunedin School of Medicine, Department of Women's and Children's Health, University of Otago Dunedin, New Zealand.



While the use of the levonorgestrel intrauterine device (LNG-IUD) is well established in the adult population, there have been no research studies specifically on the use of the LNG-IUD in adolescents.


A nationwide cohort study of 179 adolescents in New Zealand using the LNG-IUD, by means of a follow-up questionnaire to their practitioner, was conducted to determine the indications for insertion of the LNG-IUD and to establish patterns of use, including duration of use and reasons for removal.


The study, with a 94% response rate, demonstrated that the most common indication for use was menorrhagia (17%); 29% of adolescents had an "off-label" primary indication. There was a 1-year continuation rate of 85%. The cumulative incidence of expulsion was 8%.


The results of this study should be reassuring for practitioners and adolescents considering use of the LNG-IUD. However, further research is required into the safety and efficacy of the LNG-IUD in adolescents especially in the management of off-label indications.

[Indexed for MEDLINE]

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