Predictors of Discontinuation of Long-Acting Reversible Contraception Before 30 Months of Use by Adolescents and Young Women.

Purpose: The purpose of the article was to describe adolescent and young women's rates of discontinuation of intrauterine devices (IUDs) and contraceptive implants, the extent to which discontinuation is predicted by baseline factors, reasons for discontinuation, and subsequent contraceptive initiation.

Methods: We recruited English-speaking women, aged 13-24 years, from a family planning clinic serving clients <25 years old. Participants completed surveys before and after contraceptive initiation visits. We reviewed medical records and contacted participants who initiated use of an IUD or contraceptive implant and assessed contraceptive discontinuation before 30 months of use. We collected follow-up data on duration of use, reasons for discontinuation, and new method selected. We used multivariable regression models to ascertain factors associated with method discontinuation.

Results: From 2011 to 2013, 775 young women completed surveys and initiated IUD or implant use. We determined 30-month discontinuation status of 633 women (81.7%). Among those with known outcome, fewer IUD than implant initiators had discontinued use (36.3% vs. 45.4%, p = .02). Mean duration of use was 733 days (95% confidence interval 702-763 days) for the IUD and 697 days (95% confidence interval 666-728 days) for the implant. Participants who stated at baseline that it was "very important" to avoid pregnancy were about half as likely to discontinue use. The most common reasons for discontinuation were pain (IUD) and bleeding (implant). Most participants initiated alternate contraception after discontinuing their original method.

Conclusions: Adolescents and young women who initiate an IUD or implant make decisions for discontinuation based on weighing high contraceptive effectiveness with other reproductive health values and preferences.