[A comparative study of the clinical effectiveness of Progestasert and Copper-T-200 (author's transl)]

In a comparative study Progestasert and Copper-T-200 were tested. Progestasert had a significantly higher expulsion rate and required removal due to bleeding, pain or medical reasons. As a consequence, 12 months after insertion the continuation rate of Progestasert was only 66.3% in comparison with 90.4% with Copper-T-200.