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A comparison between Nova T and Copper T 200 Ag in Hungary
Author(s) -
Batar Istvan,
Lampe Laszlo,
Rakoczi Istvan,
Gati Istvan,
Allonen Hannu
Publication year - 1987
Publication title -
international journal of gynecology and obstetrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 97
eISSN - 1879-3479
pISSN - 0020-7292
DOI - 10.1016/0020-7292(87)90185-8
Subject(s) - medicine , nova (rocket) , significant difference , gynecology , pregnancy , demography , aeronautics , engineering , sociology , biology , genetics
Abstract In a comparative use‐effectiveness study, 855 Nova T and 883 TCu 200 Ag 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.