Combined and national experience of postmenstrual IUD insertions of Nova-T and Copper-T in a randomized study.
A randomized comparative study between Nova-T and Copper-T-200 was performed simultaneously in Denmark, Finland and Sweden. The results of 741 postmenstrual insertions with Nova-T and 780 with Copper-T are reported. The pregnancy rate of Nova-T was lower in every age and parity group. The pregnancy rate of Copper-T-200 varied in participating countries, whereas the pregnancy rate of Nova-T was equally low in every country. The termination rate because of expulsion with Nova-T was less affected by age and parity than that of Copper-T. Significant differences in the continuation rates with the same device were found between countries. Removals because of infection showed that women below 25 years of age had a high risk for infection regardless of parity.
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007433:Intrauterine Device Expulsion; D007435:Intrauterine Devices, Copper / Q000009:adverse effects; D010298:Parity; D000292:Pelvic Inflammatory Disease / Q000209:etiology; D011247:Pregnancy; D011897:Random Allocation