Abstract：
:A randomized comparative study between Nova-T and Copper-T-200 was performed simultaneously in Denmark, Finland and Sweden. The results of 741 postmenstrual insertions with Nova-T and 780 with Copper-T are reported. The pregnancy rate of Nova-T was lower in every age and parity group. The pregnancy rate of Copper-T-200 varied in participating countries, whereas the pregnancy rate of Nova-T was equally low in every country. The termination rate because of expulsion with Nova-T was less affected by age and parity than that of Copper-T. Significant differences in the continuation rates with the same device were found between countries. Removals because of infection showed that women below 25 years of age had a high risk for infection regardless of parity.
journal_name
Contraceptionjournal_title
Contraceptionauthors
Luukkainen T,Nielsen NC,Nygren KG,Pyörälä T,Allonen Hdoi
10.1016/s0010-7824(79)80004-9subject
Has Abstractpub_date
1979-01-01 00:00:00pages
11-20issue
1eissn
0010-7824issn
1879-0518pii
S0010-7824(79)80004-9journal_volume
19pub_type
临床试验,杂志文章,随机对照试验相关文献
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