Long term use effectiveness of the CU 7 200 IUD

Copper containing IUDs have been demonstrated to be as good, if not better, than other presently used inert devices. There is, however, non consensus on the duration of contraceptive effectiveness of copper containing IUDs. The long term contraceptive effectiveness of one copper containing IUD, the CU 7 200 Gravigard, is evaluated on 514 patients. IUDs were inserted in the intermenstrual period and patients were followed up for as long as 63 months. The probability of pregnancy, expulsion, or removal for medical reasons did not increase with increasing duration of IUD use, but instead appeared to slightly decrease with increasing the duration of IUD use. The results of this study indicate that the CU 7 200 continues to be an effective contraceptive for at least 5 years after insertion