title: Intrauterine contraception with the copper T-200 and the Dalkon shield in nulligravid women.
abstract: A randomized, prospective study design compares the small Dalkon shield and the Copper T 200 (T Cu 200) intrauterine contraceptive devices in nulligravid women in the same clinic population during a 12-month period. This prospective study demonstrates statistically significant differences in the accidental pregnancy, expulsion and medical removal rates between the two devices. In nulligravid patients the T Cu 200 had lower event rates than the small shield in the categories of accidental pregnancy and medical removals for bleeding and pain.
mesh_terms: D000293:Adolescent; D000328:Adult; D003300:Copper; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D011446:Prospective Studies
chemical_list: D003300:Copper