Objective: To compare discontinuation rates of the levonorgestrel and copper intrauterine devices (IUDs) among women with human immunodeficiency virus.
Methods: A double-masked randomized trial was conducted at Mulago Hospital, Uganda.Women received either a copper or levonorgestrel IUD. The primary outcome was discontinuation of intrauterine contraception within 1 year of placement. The secondary outcomes were incidence of side effects and severe adverse events. To discern a difference of 10% from a copper IUD discontinuation rate of 18%, power of 80%, and 95% confidence interval (CI), a sample size of 351 per arm was estimated. Analysis of the primary outcome was by intension-to-treat principle.
Results: From September 2013 to December 2014, 979 were screened and 703 randomized as follows: 349 to the copper group and 354 to the levonorgestrel group. In total, 8.6% (29/338) women in the copper group compared with 8.1% (27/334) in the levonorgestrel group discontinued intrauterine conception within 1 year of placement (incidence rate ratio 1.1 [95% CI 0.64–1.96]). Overall, the incidence of heavy bleeding was higher in the copper group (37% [125/338]) than in the levonorgestrel group (19.5% [65/334]). However, the incidence of amenorrhea, which occurred in 3.3% (11/338) of women, was lower in the copper group than the 19.8% (66/334) of women who reported amenorrhea in the levonorgestrel group.
Conclusion: There was no difference in discontinuation rates between the copper and levonorgestrel devices. Women in the levonorgestrel group had reduced incidence of heavy bleeding and a higher incidence of amenorrhea compared with those in the copper group.
Source: Obstetrics & Gynecology