PIP: The authors have followed 1000 patients (830 multiparae, 160 primiparae, 10 nulliparae) who were fitted with Copper T IUDs. They have selected the Copper T because it is well-tolerated, and causes fewer expulsions and bleeding than other types of IUDs. Prior to the insertion of the device, the patients were subjected to several tests, with a view to excluding any pregnancy in progress, any previous ectopic pregnancy, any anomaly or inflammation, or malignant lesion of the genital tract, etc. The IUDs were kept in place for 30 months and within the 1st months after insertion, there has been no associated oral contraceptive therapy. In the 1st month only spermicide substances were used. In general, the results have been satisfactory. There have been 8 spontaneous expulsions and 5 IUD removals. Pain and stiffness have also resulted. The number of pregnancies have been restricted to a Pearl index of 0.8 pregnancies/100 woman-years. No particular complications were observed. (author's)