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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Kazan medical journal</journal-id><journal-title-group><journal-title xml:lang="en">Kazan medical journal</journal-title><trans-title-group xml:lang="ru"><trans-title>Казанский медицинский журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0368-4814</issn><issn publication-format="electronic">2587-9359</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">81548</article-id><article-id pub-id-type="doi">10.17816/kazmj81548</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Extrauterine pregnancy and intrauterine contraception</article-title><trans-title-group xml:lang="ru"><trans-title>Внематочная беременность и внутриматочная контрацепция</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mazitova</surname><given-names>M. I.</given-names></name><name xml:lang="ru"><surname>Мазитова</surname><given-names>М. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>info@eco-vector.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sadykov</surname><given-names>B. G.</given-names></name><name xml:lang="ru"><surname>Садыков</surname><given-names>Б. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>info@eco-vector.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gubaidullina</surname><given-names>S. V.</given-names></name><name xml:lang="ru"><surname>Губайдуллина</surname><given-names>С. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>info@eco-vector.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shaikhutdinova</surname><given-names>L. N.</given-names></name><name xml:lang="ru"><surname>Шайхутдинова</surname><given-names>Л. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>info@eco-vector.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gainanova</surname><given-names>N. N.</given-names></name><name xml:lang="ru"><surname>Гайнанова</surname><given-names>Н. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>info@eco-vector.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Kazan State Medical University</institution></aff><aff><institution xml:lang="ru">Казанский государственный медицинский университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="1997-08-15" publication-format="electronic"><day>15</day><month>08</month><year>1997</year></pub-date><volume>78</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>279</fpage><lpage>281</lpage><history><date date-type="received" iso-8601-date="2021-10-01"><day>01</day><month>10</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-10-01"><day>01</day><month>10</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 1997, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 1997, Эко-Вектор</copyright-statement><copyright-year>1997</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://kazanmedjournal.ru/kazanmedj/article/view/81548">https://kazanmedjournal.ru/kazanmedj/article/view/81548</self-uri><abstract xml:lang="en"><p>The role of intrauterine contraception as a risk factor of extrauterine pregnancy initiation is studied using the analysis results within 4 years in Tatarstan (1992—1995). As many as 26,9% of the women of fertile age use intrauterine contraception. Extrauterine pregnancy is found, on the average, in 1390 women. The close direct correlation between the use of intrauterine contraception and the incidence of extrauterine pregnancy is revealed suggesting that intrauterine contraception is a risk factor.</p></abstract><trans-abstract xml:lang="ru"><p>Роль внутриматочной контрацепции как фактора риска наступления внематочной беременности изучена по результатам анализа за 4 года в Татарстане (1992-1995 гг.). Внутриматочную контрацепцию используют 26,9% женщин фертильного возраста. Внематочная беременность выявлена в среднем у 1390 женщин. Выявлена тесная прямая корреляция между использованием внутриматочной контрацепции и частотой внематочной беременности, что позволяет предположить, что внутриматочная контрацепция является фактором риска.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Kazan Medical archive</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Казанский медицинский архив</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Ваганов Н.Н.//Вестник акуш. и гин. — 1994. — № 3. - С. 3-13.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Губайдуллина С.В., Мазитова М.И.//Казанский мед.ж. — 1997. — № 1.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Загребина В.А., Иванникова Н.Д.//Акуш. и гин. - 1994. - № 5. - С. 18-21.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Dimitry E.S.// J. Obstet. 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