Interventions for increasing uptake of copper intrauterine devices: systematic review and meta-analysis.

Copper intrauterine devices (copper-IUDs) are relatively safer, more effective and inexpensive compared with hormonal methods and are the most widely used reversible contraception in the world, but are underused in developed countries. We systematically reviewed randomized controlled trials and controlled before-and-after studies to determine the effectiveness of interventions for improving uptake of copper-IUDs.