{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T17:36:14Z","timestamp":1790703374192,"version":"4.1.0"},"reference-count":31,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2018,8,2]],"date-time":"2018-08-02T00:00:00Z","timestamp":1533168000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Norwegian SIDS and Stillbirth Society","award":["554.04\/14"],"award-info":[{"award-number":["554.04\/14"]}]}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[2018,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Previous studies estimating the association of maternal country of birth and education with hypertensive disorders of pregnancy (<jats:styled-content style=\"fixed-case\">HDP<\/jats:styled-content>) have shown conflicting results. The aim of the study was to assess the prevalence of <jats:styled-content style=\"fixed-case\">HDP<\/jats:styled-content> and estimate the association of maternal country of birth and education level with preeclampsia\/eclampsia and gestational hypertension in Norway.<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and methods<\/jats:title><jats:p>We performed a population\u2010based observational cohort study linking two population datasets: The Medical Birth Registry of Norway and Statistics Norway (<jats:styled-content style=\"fixed-case\">SSB<\/jats:styled-content>). Singleton deliveries in Norway between 1999 and 2014 (907\u00a0048 deliveries) were stratified by parity. Multiple regression analysis was performed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In 20% of the deliveries the woman was born outside of Norway. Foreign\u2010born women had lower risk of preeclampsia\/eclampsia and gestational hypertension compared with Norwegian\u2010born women. High education reduced the risk for preeclampsia\/eclampsia by 34% (adjusted odds ratio 0.66, <jats:styled-content style=\"fixed-case\">95% CI<\/jats:styled-content> 0.62\u20100.69), compared with women with secondary education among nulliparous women, and by 39% (adjusted odds ratio 0.61, <jats:styled-content style=\"fixed-case\">95% CI<\/jats:styled-content> 0.57\u20100.65) among parous women. Poorly educated women had no increased risk of <jats:styled-content style=\"fixed-case\">HDP<\/jats:styled-content> compared with women with secondary education. Among highly educated nulliparous women the risk of preeclampsia\/eclampsia was lower but the risk of gestational hypertension higher compared with women of similar parity with secondary education. Adjustment for confounding variables had minimal effect on these estimates.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Maternal country of birth and education were associated with <jats:styled-content style=\"fixed-case\">HDP<\/jats:styled-content>. Women with higher education had the lowest risk of <jats:styled-content style=\"fixed-case\">HDP,<\/jats:styled-content> and Norwegian\u2010born women had the highest risk of <jats:styled-content style=\"fixed-case\">HDP<\/jats:styled-content>, regardless of parity and other confounding factors.<\/jats:p><\/jats:sec>","DOI":"10.1111\/aogs.13393","type":"journal-article","created":{"date-parts":[[2018,6,6]],"date-time":"2018-06-06T15:25:29Z","timestamp":1528298729000},"page":"1237-1247","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":36,"title":["The association of maternal country of birth and education with hypertensive disorders of pregnancy: A population\u2010based study of 960\u00a0516 deliveries in Norway"],"prefix":"10.1111","volume":"97","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7737-089X","authenticated-orcid":false,"given":"Kristina Baker","family":"Sole","sequence":"first","affiliation":[{"name":"Institute of Clinical Medicine University of Oslo  Oslo Norway"},{"name":"County Governor of Oslo and Akershus  Oslo Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9247-5721","authenticated-orcid":false,"given":"Anne Cathrine","family":"Staff","sequence":"additional","affiliation":[{"name":"Institute of Clinical Medicine University of Oslo  Oslo Norway"},{"name":"Department of Gynecology Oslo University Hospital  Oslo Norway"},{"name":"Department of Obstetrics Oslo University Hospital  Oslo Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9970-8401","authenticated-orcid":false,"given":"Katariina","family":"Laine","sequence":"additional","affiliation":[{"name":"Department of Obstetrics Oslo University Hospital  Oslo Norway"},{"name":"Department of Health Management and Health Economics Institute for Health and Society University of Oslo  Oslo Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2018,8,2]]},"reference":[{"key":"e_1_2_8_2_1","unstructured":"Statistics Norway.Immigants and Norwegian\u2010born to immigrants: Statistisk sentralbyr\u00e5.2017.http:\/\/www.ssb.no\/en\/befolkning\/statistikker\/innvbef\/aar\/2015-03-04. 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