A Comparative Trial of the Three Copper IUDs in Nulliparous Women

Orwan Kiriwat, Suwanee Srisupandit, Nuanchan Patrasupapong, Vannida Jirochkul, Supanee J. Apimas, Suratana Pibulmanee

Abstract


     A comparative trial concerning the uses of the Nova T, Multifold short and Mini Cu-7 devices in nulliparous women with 30 in each group was carried on at the Family Planning Research Center of the Department of Obstetrics and Gynecology at Siriraj Hospital in Bangkok, Thailand. After a two-year experimental period, 50% Nova T users, 40% Multiload short users and 46.7% Mini Cu-7 users continued to use these IUDs; and 20% Nova T users, 26.7% Multiload short, and 26.7% Mini Cu-7 discontinued their use as they wished to have babies for the first time.
     The study did not find pelvic inflammatory disease or sexually transmitted disease. At insertion time, no pain was so extensive that an analgesic tablet was needed. The study only found two women (6.7 pregnancies per 100 IUD users) become pregnant with the IUD in situ in the Mini Cu-7 group in the first 6 months of use and the net cumulative rate is still 6.7 pregnancies per 100 IUD users after the two-year period of use, and the rate of pregnancy with the IUD in situ of the other two groups was totally negative.
     The results of the study show that there is no statistical significance in the rate of pregnancy, expulsion and bleeding or pain. In conclusion, these three kinds of Copper IUDs are equally effective and of the same favorable qualities. AII three can be used in nulliparous women.

 


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