{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,24]],"date-time":"2025-10-24T16:40:41Z","timestamp":1761324041274,"version":"3.37.3"},"reference-count":30,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2016,3,15]],"date-time":"2016-03-15T00:00:00Z","timestamp":1458000000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100004756","name":"Emil Aaltosen S\u00e4\u00e4ti\u00f6","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004756","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004212","name":"P\u00e4ivikki ja Sakari Sohlbergin S\u00e4\u00e4ti\u00f6","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004212","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[2016,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Although underage pregnancies often end in induced abortion, data on girls who undergo termination of pregnancy are lacking. Our aim was to identify determinants of underage induced abortion and compare them with those of childbirth.<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and methods<\/jats:title><jats:p>All girls born in 1987 in Finland surviving the perinatal period (<jats:italic>n<\/jats:italic> = 29 041) were included in the study and divided into three study groups: Girls undergoing induced abortion (<jats:italic>n<\/jats:italic> = 1041, 3.6%) or childbirth (<jats:italic>n<\/jats:italic> = 395, 1.4%) at &lt;18 years of age and girls with no underage pregnancies (<jats:italic>n<\/jats:italic> = 27 605, 95.0%).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Shared risk factors of underage induced abortion and childbirth included early onset behavioral and emotional disorders [adjusted <jats:styled-content style=\"fixed-case\">OR<\/jats:styled-content> 1.9 (1.4\u20132.5) and 2.7 (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 1.8<jats:italic>\u2013<\/jats:italic>3.9)], a history of foster care [1.5 [1.1\u20131.9] and 3.0 [2.3\u20134.1)], and socioeconomic factors, including living in a family receiving income support [1.8 (1.5\u20132.1) and 3.4 (2.7\u20134.4)], respectively. Specific risk factors of underage induced abortion were psychoactive substance use disorders [2.2 (1.3\u20133.5)], having a mother who smoked during pregnancy [1.5 (1.3\u20131.8)] or had undergone induced abortion [1.8 (1.5\u20132.2)]. Coping with a chronic physical illness [0.7 (0.5\u20130.9)], and perinatal problems [0.6 (0.4\u20130.7)] were inversely associated with underage induced abortion.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The traditionally acknowledged determinants of underage childbirth played a less prominent role in induced abortion. Novel risk factors of underage induced abortion were found, including severe substance abuse and adverse maternal reproductive history, and should be addressed at all levels offering youth healthcare and social welfare services.<\/jats:p><\/jats:sec>","DOI":"10.1111\/aogs.12879","type":"journal-article","created":{"date-parts":[[2016,2,26]],"date-time":"2016-02-26T08:22:44Z","timestamp":1456474964000},"page":"572-579","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Determinants of underage induced abortion \u2013 the 1987 Finnish Birth Cohort study"],"prefix":"10.1111","volume":"95","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5212-5548","authenticated-orcid":false,"given":"Suvi","family":"Lepp\u00e4lahti","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology University of Helsinki and K\u00e4til\u00f6opisto Hospital Helsinki University Central Hospital Helsinki Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"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 and K\u00e4til\u00f6opisto Hospital Helsinki University Central Hospital Helsinki Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Reija","family":"Paananen","sequence":"additional","affiliation":[{"name":"THL National Institute for Health and Welfare Oulu Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7223-4071","authenticated-orcid":false,"given":"P\u00e4ivi","family":"Santalahti","sequence":"additional","affiliation":[{"name":"THL National Institute for Health and Welfare Helsinki Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3634-3294","authenticated-orcid":false,"given":"Marko","family":"Merikukka","sequence":"additional","affiliation":[{"name":"THL National Institute for Health and Welfare Oulu Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8254-7525","authenticated-orcid":false,"given":"Mika","family":"Gissler","sequence":"additional","affiliation":[{"name":"THL National Institute for Health and Welfare Helsinki Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2016,3,15]]},"reference":[{"key":"e_1_2_7_2_1","first-page":"1","article-title":"Teenagers in the United States: sexual activity, contraceptive use, and childbearing, 2006\u20132010 national survey of family growth","volume":"23","author":"Martinez G","year":"2011","journal-title":"Vital Health Stat"},{"volume-title":"U.S. teenage pregnancies, births and abortions, 2010: national and state trends by age, race and ethnicity","year":"2014","author":"Kost K","key":"e_1_2_7_3_1"},{"key":"e_1_2_7_4_1","unstructured":"Conceptions in England and Wales 2012[Internet]. Office for National Statistics (ONS).2014. Available online at:http:\/\/www.ons.gov.uk\/ons\/dcp171778_353922.pdf. (accessed 6 November 2015)"},{"key":"e_1_2_7_5_1","unstructured":"Perinatal statistics in the Nordic countries. Statistical Report 31\/2014 [Internet]. National Institute for Health and Welfare (THL).2014. Available online at:https:\/\/www.thl.fi\/en\/web\/thlfi-en\/statistics\/statistics-by-topic\/sexual-and-reproductive-health\/parturients-deliveries-and-births\/nordic-perinatal-statistics. (acessed 6 November 2015)."},{"key":"e_1_2_7_6_1","unstructured":"Induced abortions in the Nordic countries 2013. Statistical Report 7\/2015 [Internet]. National Institute for Health and Welfare (THL).2015. Available online at:https:\/\/www.thl.fi\/en\/web\/thlfi-en\/statistics\/statistics-by-topic\/sexual-and-reproductive-health\/abortions\/induced-abortions-in-the-nordic-countries. (accessed 6 November 2015)."},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/B978-0-12-394388-0.00004-6"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1093\/eurpub\/ckm014"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1177\/1403494807088460"},{"key":"e_1_2_7_10_1","unstructured":"ChristoffersenM.Motherhood and induced abortion among teenagers: a longitudinal study of all 1519 year old Danish women born in 1966. Children Youth and Families Working Paper 2:2003. Available online at:http:\/\/www.sfi-campbell.dk\/Files\/Filer\/SFI\/Pdf\/Working_papers\/wp2000303mc.pdf. (accessed November 6 2015)."},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.puhe.2014.05.008"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0412.2012.01517.x"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejogrb.2012.10.017"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(01)06885-4"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1093\/ije\/dyr035"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1177\/1403494812456637"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1177\/140349489502300113"},{"key":"e_1_2_7_18_1","first-page":"113","article-title":"Finnish health and social welfare registers in epidemiological research","volume":"14","author":"Gissler M","year":"2004","journal-title":"Norsk Epidemiol"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1111\/1467-8624.00569"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1467-8624.2009.01345.x"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/1054-139X(95)00282-W"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1054-139X(96)00091-2"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1083-3188(00)00004-8"},{"key":"e_1_2_7_24_1","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2007-3858"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.1159\/000091515"},{"key":"e_1_2_7_26_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0897.2011.01035.x"},{"key":"e_1_2_7_27_1","first-page":"323","article-title":"Substance use and sexual risk behaviors among Mississippi public high school students","volume":"53","author":"McGuire J","year":"2012","journal-title":"J Miss State Med Assoc"},{"key":"e_1_2_7_28_1","first-page":"985","article-title":"Teenagers and risk\u2010taking: pregnancy and smoking","volume":"48","author":"Seamark CJ","year":"1998","journal-title":"Br J Gen Pract"},{"key":"e_1_2_7_29_1","doi-asserted-by":"publisher","DOI":"10.15288\/jsas.2002.s14.101"},{"key":"e_1_2_7_30_1","doi-asserted-by":"publisher","DOI":"10.1080\/87565640802564366"},{"key":"e_1_2_7_31_1","doi-asserted-by":"publisher","DOI":"10.1023\/A:1009065713389"}],"container-title":["Acta Obstetricia et Gynecologica Scandinavica"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Faogs.12879","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Faogs.12879","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/aogs.12879","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,9,16]],"date-time":"2023-09-16T11:14:17Z","timestamp":1694862857000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.1111\/aogs.12879"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,3,15]]},"references-count":30,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2016,5]]}},"alternative-id":["10.1111\/aogs.12879"],"URL":"https:\/\/doi.org\/10.1111\/aogs.12879","archive":["Portico"],"relation":{},"ISSN":["0001-6349","1600-0412"],"issn-type":[{"type":"print","value":"0001-6349"},{"type":"electronic","value":"1600-0412"}],"subject":[],"published":{"date-parts":[[2016,3,15]]},"assertion":[{"value":"2015-11-11","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2016-02-09","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2016-03-15","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}