Comparison of two cohorts of women who expulsed either a copper‐intrauterine device or a levonorgestrel‐releasing intrauterine system. Issue 5 (28th January 2016)

• Record Type: Journal Article
• Authors: Simonatto, Paula; Bahamondes, Maria Valeria; Fernandes, Arlete; Silveira, Carolina; Bahamondes, Luis
• Is Part Of: Journal of obstetrics and gynaecology research. Volume 42:Issue 5(2016)
• Page Start: 554
• Page End: 559
• Publication Date: 2016-01-28
• Subjects: copper IUD -- expulsion -- Intrauterine device -- levonorgestrel‐releasing intrauterine system; Gynecology -- Periodicals; Obstetrics -- Periodicals; 618.1005
• DOI: 10.1111/jog.12939
• Languages: English
• ISSNs: 1341-8076

Abstract

Abstract: Aim: To assess if there is a difference in the characteristics of the women who expelled a copper‐intrauterine device (TCu‐IUD) or the levonorgestrel‐releasing intrauterine system (LNG‐IUS) and the frequency of expulsions over different periods of observation. Methods: We retrospectively analyzed 19 697 medical charts of women consulting between January 1980 and December 2013 who requested a TCu‐IUD or a LNG‐IUS. Results: The medical records of 17 644 Cu‐IUD and 2053 LNG‐IUS users returning to the clinic for a follow‐up visit after insertion of an IUC were reviewed. Of these, 1532 Cu‐IUD and 254 LNG‐IUS parous users were found to have expelled the IUC for a first time. The mean age at insertion (± standard deviation) was 26.3 ± 6.6 years (range 16–49) for Cu‐IUD users and 31.7 ± 7.6 years (range 18–48) for LNG‐IUS users ( P < 0.001). A total of 263 (13.4%) and 12 (4.3%) of the Cu‐IUD and the LNG‐IUS users were ≤19 years old, and 49.1% and 54.1% of the expulsions among the Cu‐IUD and LNG‐IUS users, respectively, were reported in the first six months after placement. A regression model showed that the variables significantly associated with an expulsion of either a Cu‐IUD or LNG‐IUS were age < 25 years, less than two deliveries and using a Cu‐IUD. Conclusion: Our findings showed that the characteristics associated with IUC expulsion were age under 25 years, having had less than two deliveries and being users of Cu‐IUD.