[A comparative study of the efficacy, tolerance and side effects in using IUDs--the Copper T and Nova T--over a 3-year period].

The author examined 153 women, using the intrauterine contraceptive device Copper T, and 120 women, using the intrauterine contraceptive device Nova T. 10.3% of all observed women are nonparous, the mean number of born children is 1.1% and the relative number of abortions is 2.9 in the group of parous women. The occurrence of side effects are registered by dispensary observation twice during the first year and once during the following period. The degree of conception in both groups is low below the accepted ranges. The same is also referred for the monthly risk of expulsion of the loop. The intramenstrual inflammatory and painful parameters are increased 1.5-2.1 times in comparison with women, using the intrauterine device Nova T. Menstrual bleedings in both groups of women is prolonged with 1.3 days on the average. There are no pathological complications during the whole period of observation.