A comparison between Nova T and Copper T 200 Ag in Hungary
- 1 February 1987
- journal article
- research article
- Published by Wiley in International Journal of Gynecology & Obstetrics
- Vol. 25 (1) , 59-63
- https://doi.org/10.1016/0020-7292(87)90185-8
Abstract
In a comparative use-effectiveness study, 855 Nova T and 883 TCu 200 A g devices were inserted in a randomised sequence. By the end of the first year the gross rate of unplanned pregnancy was 1.1 per 100 users of Nova T and 2.1 per 100 users of TCu. After 2 years the pregnancy rates for Nova T and TCu were 3.1 and 4.8 per 100 users, respectively. Although there was no statistically significant difference between the rates for the two devices, they suggest a higher contraceptive efficacy for Nova T.Keywords
This publication has 3 references indexed in Scilit:
- Five years' experience of intrauterine contraception with the Nova-T and the Copper-T-200American Journal of Obstetrics and Gynecology, 1983
- A new procedure for the statistical evaluation of intrauterine contraceptionAmerican Journal of Obstetrics and Gynecology, 1977