{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T23:37:13Z","timestamp":1792798633161,"version":"4.5.0"},"reference-count":30,"publisher":"BMJ","issue":"3","funder":[{"DOI":"10.13039\/501100005425","name":"Uudenmaan Rahasto","doi-asserted-by":"publisher","award":["00211101"],"award-info":[{"award-number":["00211101"]}],"id":[{"id":"10.13039\/501100005425","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100005425","name":"Uudenmaan Rahasto","doi-asserted-by":"publisher","award":["00230159"],"award-info":[{"award-number":["00230159"]}],"id":[{"id":"10.13039\/501100005425","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100008376","name":"Helsingin ja Uudenmaan Sairaanhoitopiiri","doi-asserted-by":"publisher","award":["Not Applicable"],"award-info":[{"award-number":["Not Applicable"]}],"id":[{"id":"10.13039\/100008376","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Avohoidon Tutkimuss\u00e4\u00e4ti\u00f6","award":["Not Applicable"],"award-info":[{"award-number":["Not Applicable"]}],"id":[{"id":"https:\/\/ror.org\/00ne7b711","id-type":"ROR","asserted-by":"crossref"}]},{"DOI":"10.13039\/100010114","name":"Yrj\u00f6 Jahnssonin S\u00e4\u00e4ti\u00f6","doi-asserted-by":"publisher","award":["20207328"],"award-info":[{"award-number":["20207328"]}],"id":[{"id":"10.13039\/100010114","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004012","name":"Jane ja Aatos Erkon S\u00e4\u00e4ti\u00f6","doi-asserted-by":"publisher","award":["170062"],"award-info":[{"award-number":["170062"]}],"id":[{"id":"10.13039\/501100004012","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Sex Reprod Health"],"accepted":{"date-parts":[[2026,3,15]]},"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Postpartum contraception start and use are important to avoid unplanned pregnancy and to optimise birth spacing. There is inconsistent knowledge concerning the background factors influencing the type and timing of contraceptive initiation and adherence after delivery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This was a historic cohort study. We identified 26 650\u2009women that delivered between 1 January 2019 and 31 December 2019, using the Finnish Medical Birth Register. Postpartum follow-up time for each woman was 1 year. The primary outcome of the study was postpartum purchase of hormonal contraception from a pharmacy, identified from the Prescription Centre. Additionally, we analysed if mode of delivery, epidural analgesia, induction of labour, hypertensive complications, fear of childbirth or gestational diabetes affected hormonal contraception purchase.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Altogether, 33% (n=8902) of the women purchased a hormonal contraception method postpartum. The most purchased method was the desogestrel-only pill (56%, n=4978), and other progestogen-only preparations, which covered almost 90% of all methods started. Additionally, 4% (n=1141) received an intrauterine device (IUD) in primary healthcare. Instrumental delivery (OR 1.15, 95% CI 1.06 to 1.25), caesarean section (OR 1.26, 95% CI 1.13 to 1.41 for planned caesarean section and OR 1.25, 95% CI 1.15 to 1.36 for emergency caesarean section), epidural analgesia (OR 1.12, 95% CI 1.05 to 1.18)\u2009and induction of labour with intracervical balloon (OR 1.14, 95% CI 1.01 to 1.28) were associated with a significantly higher rate of hormonal contraception purchase.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Overall, 37% of women purchased a hormonal contraception method or received an IUD during the first postpartum year. Common delivery complications were associated with higher rate of postpartum hormonal contraception purchase.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmjsrh-2025-203105","type":"journal-article","created":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T17:20:24Z","timestamp":1775582424000},"page":"184-191","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Purchase of hormonal contraceptive methods after delivery: a population-based study from Finland"],"prefix":"10.1136","volume":"52","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-6351-3545","authenticated-orcid":false,"given":"Camilla","family":"J\u00e4ntti","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology, University of Helsinki, Helsinki, Finland"},{"name":"Department of Obstetrics and Gynecology, Hyvink\u00e4\u00e4n Hospital, Hyvink\u00e4\u00e4, Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6757-7355","authenticated-orcid":false,"given":"Elena","family":"Toffol","sequence":"additional","affiliation":[{"name":"Department of Public Health, Faculty of Medicine, University of Helsinki, Helsinki, Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1450-6208","authenticated-orcid":false,"given":"Jari","family":"Haukka","sequence":"additional","affiliation":[{"name":"Department of Public Health, Faculty of Medicine, University of Helsinki, Helsinki, Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8671-130X","authenticated-orcid":false,"given":"Oskari","family":"Heikinheimo","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, University of Helsinki, Helsinki, Finland"},{"name":"Department of Obstetrics and Gynecology, Helsinki University Hospital, Helsinki, Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2026,4,7]]},"reference":[{"key":"2026102002201897000_52.3.184.1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0000000000003025"},{"key":"2026102002201897000_52.3.184.2","unstructured":"World Health Organization (WHO) . Report of a WHO technical consultation on birth spacing: Geneva, Switzerland13\u201315 June 2005. 2005. Available: https:\/\/www.who.int\/publications\/i\/item\/WHO-RHR-07.1"},{"key":"2026102002201897000_52.3.184.3","unstructured":"Faculty of Sexual & Reproductive Healthcare (FSRH) . FSRH Guideline: Contraception after pregnancy. 2020. 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