The Study of One-Year Survival rate and Discontinuation Causes of Using Intrauterine Device (IUD)

Background and Intrauterine device (IUD) is one of the modern methods of contraception; one of the problems in using this method is its early removal. This study aimed to determine one-year survival rate and discontinuation causes of IUD use in Kermanshah, Iran. In this cohort study, data were collected from patients with IUD using a questionnaire containing demographic and IUD related variables. Patients were followed for one year or until the time that IUD removed. Then, the data were analyzed using Cox regression model. Kaplan-Meier method was used to determine the duration of IUD use. The mean age of the 274 studied women was 28.2 ± 6.2 years. 15% of them had removed their IUD and the most common reason for withdrawal was related to bleeding and spontaneous removal. The highest IUD removal rate was occurred in the first 6 months and the mean duration of IUD use in people who had IUD removal was 4.2 ± 3.8 months. A significant correlation was found between previously used of IUD and IUD removal. So that, those who did not have a history of IUD use have a greater rate ratio (P = 0.04). In this study, the 6-month survival rate of IUD was 88.7% and one-year survival was 85%. The results show that bleeding and spontaneous removal is the main reasons for discontinuation of this method; therefore, it is necessary to devise strategies to reduce removal rate and increase the time maintenance of IUD.