{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:12:53Z","timestamp":1790727173260,"version":"4.1.0"},"reference-count":24,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2013,10,1]],"date-time":"2013-10-01T00:00:00Z","timestamp":1380585600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["BJOG"],"published-print":{"date-parts":[[2014,1]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To determine prescription contraceptive use in the <jats:styled-content style=\"fixed-case\">UK<\/jats:styled-content>.<\/jats:p><\/jats:sec><jats:sec><jats:title>Design<\/jats:title><jats:p>Observational study using a primary care database.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting<\/jats:title><jats:p>The Health Improvement Network (<jats:styled-content style=\"fixed-case\">THIN<\/jats:styled-content>).<\/jats:p><\/jats:sec><jats:sec><jats:title>Population<\/jats:title><jats:p>Women in <jats:styled-content style=\"fixed-case\">THIN<\/jats:styled-content> aged 12\u201349\u00a0years in 2008, registered with their primary care doctor for at least 5\u00a0years, and with a prescription history of at least 1\u00a0year were included.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p><jats:styled-content style=\"fixed-case\">THIN<\/jats:styled-content> was searched using the Read and <jats:styled-content style=\"fixed-case\">MULTILEX<\/jats:styled-content> codes for the following methods: combined oral contraceptives (<jats:styled-content style=\"fixed-case\">COC<\/jats:styled-content>s), progestogen\u2010only pills (<jats:styled-content style=\"fixed-case\">POP<\/jats:styled-content>s), copper intrauterine devices (Cu\u2010<jats:styled-content style=\"fixed-case\">IUD<\/jats:styled-content>s), the levonorgestrel\u2010releasing intrauterine system (<jats:styled-content style=\"fixed-case\">LNG<\/jats:styled-content>\u2010<jats:styled-content style=\"fixed-case\">IUS<\/jats:styled-content>), progestogen\u2010only implants, progestogen\u2010only injections, and contraceptive patches.<\/jats:p><\/jats:sec><jats:sec><jats:title>Main outcome measures<\/jats:title><jats:p>Prevalence, switching, and duration of prescriptions.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A cohort of 194\u00a0054 women was identified. The prevalence of contraceptive use was: <jats:styled-content style=\"fixed-case\">COC<\/jats:styled-content>s, 16.2% (95%\u00a0confidence interval, 95%\u00a0<jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 16.1\u201316.3%); <jats:styled-content style=\"fixed-case\">POP<\/jats:styled-content>s, 5.6% (95%\u00a0<jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 5.5\u20135.6%); Cu\u2010<jats:styled-content style=\"fixed-case\">IUD<\/jats:styled-content>, 4.5% (95%\u00a0<jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 4.4\u20134.5%); <jats:styled-content style=\"fixed-case\">LNG<\/jats:styled-content>\u2010<jats:styled-content style=\"fixed-case\">IUS<\/jats:styled-content>, 4.2% (95%\u00a0<jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 4.1\u20134.2%); progestogen\u2010only implants, 1.5% (95%\u00a0<jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 1.5\u20131.6%); progestogen\u2010only injections, 2.4% (95%\u00a0<jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 2.3\u20132.4%); and contraceptive patches, 0.1% (95%\u00a0<jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 0.1\u20130.2%). Within 1\u00a0year, 9.8% of new <jats:styled-content style=\"fixed-case\">COC<\/jats:styled-content> users switched to alternative <jats:styled-content style=\"fixed-case\">COC<\/jats:styled-content>s, and 9.0% changed to a different method. Among new <jats:styled-content style=\"fixed-case\">COC<\/jats:styled-content> users who did not switch method, 34.8% did not continue use beyond 3\u00a0months, and were no longer using a prescription contraceptive.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Among users of oral contraceptives who did not switch method, over one\u2010third did not continue use beyond 3\u00a0months. This supports current <jats:styled-content style=\"fixed-case\">UK<\/jats:styled-content> guidelines recommending a follow\u2010up consultation with a healthcare professional 3\u00a0months after the first prescription of <jats:styled-content style=\"fixed-case\">COC<\/jats:styled-content>s.<\/jats:p><\/jats:sec>","DOI":"10.1111\/1471-0528.12465","type":"journal-article","created":{"date-parts":[[2013,10,12]],"date-time":"2013-10-12T01:53:03Z","timestamp":1381542783000},"page":"53-61","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":47,"title":["Use of prescription contraceptive methods in the <scp>UK<\/scp> general population: a primary care study"],"prefix":"10.1111","volume":"121","author":[{"given":"L","family":"Cea\u2010Soriano","sequence":"first","affiliation":[{"name":"Spanish Centre for Pharmacoepidemiologic Research (CEIFE) Madrid Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"LA","family":"Garc\u00eda Rodr\u00edguez","sequence":"additional","affiliation":[{"name":"Spanish Centre for Pharmacoepidemiologic Research (CEIFE) Madrid Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A","family":"Machlitt","sequence":"additional","affiliation":[{"name":"Global Pharmacovigilance Risk Management Bayer HealthCare Pharmaceuticals Inc. Montville NJ USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M\u2010A","family":"Wallander","sequence":"additional","affiliation":[{"name":"Department of Public Health and Caring Science Uppsala University Uppsala Sweden"},{"name":"Bayer AB Solna Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2013,10]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.contraception.2009.06.005"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa1110855"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.contraception.2007.09.001"},{"key":"e_1_2_7_5_1","unstructured":"NICE Guidelines Long Acting Reversible Contraception.2005[www.nice.org.uk\/nicemedia\/live\/10974\/29912\/29912.pdf.]. 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