{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T05:05:36Z","timestamp":1783055136056,"version":"3.54.6"},"reference-count":8,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2022,4,1]],"date-time":"2022-04-01T00:00:00Z","timestamp":1648771200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pharmacoepidemiology and Drug"],"published-print":{"date-parts":[[2022,6]]},"abstract":"<jats:title><jats:bold>Abstrac<\/jats:bold>t<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To describe the use of hormonal contraceptives in Danish breast cancer patients.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Nationwide drug utilization study in Danish women diagnosed with breast cancer at ages 13\u201350\u2009years during 2000\u20132015. User proportions were estimated in 6\u2010months intervals from 2\u2009years before to 2\u2009years after diagnosis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Use of hormonal contraceptives declined sharply after breast cancer diagnosis. Still, 7% of patients aged 13\u201339\u2009years filled hormonal contraceptive prescriptions within 6\u00a0months after the diagnosis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The majority of premenopausal breast cancer patients discontinues hormonal contraception at diagnosis. All prescribers of hormonal contraceptives should acknowledge that hormonal contraception is contraindicated for breast cancer patients.<\/jats:p><\/jats:sec><jats:sec><jats:title>Plain Language Summary<\/jats:title><jats:p>Use of hormonal contraception is contraindicated among women with breast cancer. In this nationwide study, we assessed the use of hormonal contraceptives among all Danish premenopausal women diagnosed with breast cancer during 2000\u20132015. Hormonal contraceptive use was assessed within 2 years before and 2 years after breast cancer diagnosis. The majority of patients discontinued hormonal contraception at breast cancer diagnosis. However, 7% of patients aged 13\u201339 years filled hormonal contraceptive prescriptions within 6 months after the diagnosis.<\/jats:p><\/jats:sec>","DOI":"10.1002\/pds.5431","type":"journal-article","created":{"date-parts":[[2022,3,23]],"date-time":"2022-03-23T16:22:51Z","timestamp":1648052571000},"page":"706-709","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Hormonal contraception use before and after breast cancer diagnosis: A nationwide drug utilization study"],"prefix":"10.1002","volume":"31","author":[{"given":"Lina Steinrud","family":"M\u00f8rch","sequence":"first","affiliation":[{"name":"Cancer Surveillance and Pharmacoepidemiology Danish Cancer Society Research Center, Danish Cancer Society  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S\u00f8ren","family":"Friis","sequence":"additional","affiliation":[{"name":"Cancer Surveillance and Pharmacoepidemiology Danish Cancer Society Research Center, Danish Cancer Society  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amani","family":"Meaidi","sequence":"additional","affiliation":[{"name":"Department of Clinical Medicine, Faculty of Health and Medical Sciences University of Copenhagen  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christian","family":"Dehlendorff","sequence":"additional","affiliation":[{"name":"Statistics and Data Analysis Danish Cancer Society Research Center, Danish Cancer Society  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Charlotte Wessel","family":"Skovlund","sequence":"additional","affiliation":[{"name":"Cancer Surveillance and Pharmacoepidemiology Danish Cancer Society Research Center, Danish Cancer Society  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anne Katrine","family":"Duun\u2010Henriksen","sequence":"additional","affiliation":[{"name":"Statistics and Data Analysis Danish Cancer Society Research Center, Danish Cancer Society  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,4]]},"reference":[{"key":"e_1_2_10_2_1","unstructured":"United Nations Population Division Department of Economic and Social Affairs.World Contraceptive Patterns.2013:http:\/\/www.un.org\/en\/development\/desa\/population\/publications\/family\/contraceptive-wallchart-2013.shtml"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0412.2012.01416.x"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/aogs.13055"},{"key":"e_1_2_10_5_1","unstructured":"World Health Organization. 2015."},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1177\/1403494810393562"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10654-014-9930-3"},{"key":"e_1_2_10_8_1","first-page":"798","article-title":"Data resource profile: the Danish National Prescription Registry","volume":"46","author":"Potteg\u00e5rd A","year":"2017","journal-title":"Int J Epidemiol"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejogrb.2020.12.035"}],"container-title":["Pharmacoepidemiology and Drug Safety"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/pds.5431","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/pds.5431","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/pds.5431","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,25]],"date-time":"2023-08-25T22:22:00Z","timestamp":1693002120000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/pds.5431"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,4]]},"references-count":8,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2022,6]]}},"alternative-id":["10.1002\/pds.5431"],"URL":"https:\/\/doi.org\/10.1002\/pds.5431","archive":["Portico"],"relation":{},"ISSN":["1053-8569","1099-1557"],"issn-type":[{"value":"1053-8569","type":"print"},{"value":"1099-1557","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,4]]},"assertion":[{"value":"2021-11-05","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-03-18","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-04-01","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}