Determinants of early discontinuation of etonogestrel sub-dermal implant among reproductive-age women in Legambo district, Northeast Ethiopia: An unmatched case-control study

Objective: Etonogestrel sub-dermal implant discontinuation is very common in the study area. But evidence on the determinants was limited. So, this study aimed to identify determinants of early discontinuation of etonogestrel sub-dermal implant among reproductive-age women in Legambo district, Northeast Ethiopia. Methods: An institution-based unmatched case-control study was conducted on 252 reproductive-age women (84 cases and 168 controls) from I February up to 30 April 2020. Systematic random sampling was used to select women, and the data were collected by face-to-face interview using a structured, pretested, and interviewer-administered questionnaire. The collected data were entered into Epi Data version 3.1 and analyzed by SPSS version 23. A binary logistic regression model was used to identify determinants of early discontinuation of etonogestrel sub-dermal implant. Statistical significance was declared at a p value of less than 0.05, and adjusted odds ratio with a 95% confidence interval was used to identify determinants of early discontinuation of etonogestrel sub-dermal implant in the final model. Result: In this study, not receiving pre-insertion counseling (adjusted odds ratio = 3.19, 95% confidence interval: (1.61, 6.30)), having a history of abortion (adjusted odds ratio = 2.89, 95% confidence interval: (1.50, 5.54)), contraceptive side effects (adjusted odds ratio = 2.45, 95% confidence interval: (1.99, 3.91)), and not receiving an appointment for a follow-up visit at the time of insertion (adjusted odds ratio = 3.45, 95% confidence interval: (1.89, 5.99)) were determinants of early discontinuation of etonogestrel sub-dermal implant. Conclusion: Not receiving pre-insertion counseling, having a history of abortion, contraceptive side effects, and not receiving an appointment for a follow-up visit at the time of insertion were predictors of early discontinuation of etonogestrel sub-dermal implant. Thus, healthcare professionals should give an appointment for a follow-up visit at the time of insertion and provide detailed counseling for all women, not only for those who had had an abortion and contraceptive side effects.