{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T19:16:48Z","timestamp":1790191008007,"version":"4.1.0"},"reference-count":28,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2015,2,14]],"date-time":"2015-02-14T00:00:00Z","timestamp":1423872000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Paediatric Perinatal Epid"],"published-print":{"date-parts":[[2015,3]]},"abstract":"Abstract<\/jats:title>Background<\/jats:title>Many births in industrialised countries are to immigrant parents, or to one immigrant and one domestically born parent. Their newborn outcomes have not been well studied.<\/jats:p><\/jats:sec>Methods<\/jats:title>We conducted a study of 1\u2009690\u2009423 singleton infants born in S<\/jats:styled-content>weden between 1987 and 2008, including those of immigrants from E<\/jats:styled-content>ast A<\/jats:styled-content>sia, S<\/jats:styled-content>outh A<\/jats:styled-content>sia, S<\/jats:styled-content>ub\u2010S<\/jats:styled-content>aharan A<\/jats:styled-content>frica, and E<\/jats:styled-content>ast A<\/jats:styled-content>frica. Preterm delivery and small for gestational age (SGA<\/jats:styled-content>) were assessed among infants of (i) immigrant parents from the same world region, (ii) an immigrant mother and a S<\/jats:styled-content>wedish\u2010born father, and (iii) a S<\/jats:styled-content>wedish\u2010born mother and an immigrant father; each compared to (iv) two S<\/jats:styled-content>wedish\u2010born parents. Log binomial regression analysis generated adjusted risk ratios (ARRs<\/jats:styled-content>) and 95% confidence intervals (CIs<\/jats:styled-content>) for preterm delivery and SGA<\/jats:styled-content>.<\/jats:p><\/jats:sec>Results<\/jats:title>Compared with infants of two S<\/jats:styled-content>wedish\u2010born parents, infants born to immigrant mothers from E<\/jats:styled-content>ast A<\/jats:styled-content>sia, S<\/jats:styled-content>outh A<\/jats:styled-content>sia, and S<\/jats:styled-content>ub\u2010S<\/jats:styled-content>aharan A<\/jats:styled-content>frican were at higher risk of preterm delivery (ARR<\/jats:styled-content> ranging from 1.2 to 1.9), irrespective of whether the father was from the same world region or S<\/jats:styled-content>wedish\u2010born, with the only exception of E<\/jats:styled-content>ast A<\/jats:styled-content>frican women, who had lower risk. Infants born to two foreign\u2010born parents had the highest risks of SGA<\/jats:styled-content>, particularly S<\/jats:styled-content>outh A<\/jats:styled-content>sians (ARR<\/jats:styled-content> 4.69; 95% CI<\/jats:styled-content> 4.29, 5.12). Mixed couples exhibited intermediate risks of SGA<\/jats:styled-content>.<\/jats:p><\/jats:sec>Conclusions<\/jats:title>Adverse birth outcomes differ according to a couple's ethnic composition. Having a S<\/jats:styled-content>wedish\u2010born partner is associated with lower risk of SGA<\/jats:styled-content> among immigrant mothers and fathers, and with lower risk of preterm delivery among immigrant fathers but not mothers.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ppe.12179","type":"journal-article","created":{"date-parts":[[2015,2,14]],"date-time":"2015-02-14T06:03:30Z","timestamp":1423893810000},"page":"123-130","source":"Crossref","is-referenced-by-count":33,"title":["Birth Outcomes of Foreign\u2010Born, Native\u2010Born, and Mixed Couples in S<\/scp>weden"],"prefix":"10.1111","volume":"29","author":[{"given":"Marcelo L.","family":"Urquia","sequence":"first","affiliation":[{"name":"Centre for Research on Inner City Health St. Michael's Hospital St. Michael's Hospital Toronto Ontario Canada"},{"name":"Dalla Lana School of Public Health University of Toronto Toronto Ontario Canada"},{"name":"The Institute for Clinical Evaluative Sciences Toronto Ontario Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yao","family":"Qiao","sequence":"additional","affiliation":[{"name":"Dalla Lana School of Public Health University of Toronto Toronto Ontario Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joel G.","family":"Ray","sequence":"additional","affiliation":[{"name":"Centre for Research on Inner City Health St. Michael's Hospital St. Michael's Hospital Toronto Ontario Canada"},{"name":"Departments of Medicine and Obstetrics and Gynaecology St. Michael's Hospital Toronto Ontario Canada"},{"name":"The Institute for Clinical Evaluative Sciences Toronto Ontario Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Can","family":"Liu","sequence":"additional","affiliation":[{"name":"Centre for Health Equity Studies (CHESS) Karolinska Institutet\/Stockholm University Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anders","family":"Hjern","sequence":"additional","affiliation":[{"name":"Centre for Health Equity Studies (CHESS) Karolinska Institutet\/Stockholm University Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2015,2,14]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM200102153440701"},{"key":"e_1_2_6_3_1","volume-title":"Preterm Birth: Causes, Consequences, and Prevention","author":"Committee on Understanding Premature Birth and Assuring Healthy Outcomes","year":"2007"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.socscimed.2009.06.027"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1023\/A:1022328020935"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2458-9-84"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1080\/13557850802071132"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2006.03.109"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.2105\/AJPH.94.12.2062"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1097\/01.AOG.0000165274.06811.86"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1089\/jwh.2009.1561"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0029-7844(98)00310-X"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.1136\/jech-2014-204257"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9378(98)70542-3"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10995-010-0705-5"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.2105\/AJPH.2005.066324"},{"key":"e_1_2_6_17_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2007.01508.x"},{"key":"e_1_2_6_18_1","volume-title":"Births in England and Wales by Parents' Country of Birth, 2011","author":"Office for National Statistics","year":"2012"},{"key":"e_1_2_6_19_1","doi-asserted-by":"publisher","DOI":"10.2105\/AJPH.92.12.1976"},{"key":"e_1_2_6_20_1","doi-asserted-by":"publisher","DOI":"10.4054\/DemRes.2008.19.9"},{"key":"e_1_2_6_21_1","volume-title":"The Swedish Medical Birth Register. A Summary of Content and Quality","author":"Swedish Centre for Epidemiology","year":"2003"},{"key":"e_1_2_6_22_1","doi-asserted-by":"publisher","DOI":"10.3109\/00016349709034900"},{"key":"e_1_2_6_23_1","volume-title":"Routine Ultrasound Examination During Pregnancy","author":"The Swedish Council on Technology Assessment in Health Care (SBU)","year":"1998"},{"key":"e_1_2_6_24_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1651-2227.1996.tb14164.x"},{"key":"e_1_2_6_25_1","volume-title":"Exploratory Data Analysis","author":"Tukey JW","year":"1977"},{"key":"e_1_2_6_26_1","doi-asserted-by":"publisher","DOI":"10.1093\/aje\/kwi188"},{"issue":"428","key":"e_1_2_6_27_1","first-page":"e1","article-title":"Ethnicity\u2010specific birthweight distributions improve identification of term newborns at risk for short\u2010term morbidity","volume":"209","author":"Hanley GE","year":"2013","journal-title":"American Journal of Obstetrics and Gynecology"},{"key":"e_1_2_6_28_1","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2393-8-1"},{"key":"e_1_2_6_29_1","doi-asserted-by":"publisher","DOI":"10.1503\/cmaj.140748"}],"container-title":["Paediatric and Perinatal Epidemiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fppe.12179","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/ppe.12179","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,9,29]],"date-time":"2023-09-29T17:20:42Z","timestamp":1696008042000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/ppe.12179"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,2,14]]},"references-count":28,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2015,3]]}},"alternative-id":["10.1111\/ppe.12179"],"URL":"https:\/\/doi.org\/10.1111\/ppe.12179","archive":["Portico"],"relation":{},"ISSN":["0269-5022","1365-3016"],"issn-type":[{"value":"0269-5022","type":"print"},{"value":"1365-3016","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,2,14]]}}}