Sustainability of Yam Daabo Interventions' Effects on Contraception use in Burkina Faso 12 Months after the end of Interventions

Abstract Introduction After testing the interventions for improving the prevalence of contraceptive use, very few studies have measured the sustainability of the effects achieved during implementation. This study aimed to measure the sustainability of Yam Daabo interventions' effects on contraceptive use in Burkina Faso twelve months after these interventions were completed. Methods Yam Daabo was a two-group, multi-intervention, single-blind, cluster randomized controlled trial. Interventions comprised refresher training for the provider, a counseling tool, supportive supervision, availability of contraceptive services 7 days a week, client appointment cards, and invitation letters for partners. We used generalized linear mixed-effects models (log Poisson) to compare the modern contraceptive prevalence at 24 months in the intervention and control groups. We collected data between September and November 2018. We conducted an intention-to-treat analysis and adjusted the prevalence ratios on cluster effects and unbalanced baseline characteristics. Results Twelve months after the completion of the Yam Daabo trial, we interviewed 84.9% (485 out of 571 women) of the women included at Yam Daabo starting, that is, 247/286 in the intervention group (86.4%) and 238/285 in the control group (83.5%). No difference was observed in the use of hormonal contraceptive methods between the intervention and control groups (adjusted prevalence ratio=1.21; 95% confidence interval [CI] = [0.91–1.61], p=0.191). By contrast, women in the intervention group were more likely to use long acting reversible contraceptives (LARC) than those in the control group (adjusted prevalence ratio =1.35; 95% CI = [1.08–1.69], p=0.008). Conclusion This study showed that women in the intervention group preferred to use long-acting reversible contraceptives even though no significant difference was found in the comparison of modern contraceptive prevalences between the two arms. Trial registration The trial registration number at the Pan African Clinical Trials Registry is PACTR201609001784334 and the date of the first registration is 27/09/2016.