{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T01:24:13Z","timestamp":1780363453533,"version":"3.54.1"},"reference-count":32,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2011,3,4]],"date-time":"2011-03-04T00:00:00Z","timestamp":1299196800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[2011,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p> <jats:italic>Objective<\/jats:italic>. To estimate incidence and risk factors for intrauterine fetal death (IUFD) in a Norwegian study\u2010population applying two different control groups.\u2002<jats:italic>Design.<\/jats:italic>\u2002Case\u2010control study.\u2002<jats:italic>Setting.<\/jats:italic>\u2002Two university hospitals in Oslo, Norway, January 1990 through December 2003.\u2002<jats:italic>Sample.<\/jats:italic>\u2002The cases: 377 women with IUFD. Controls: 1) all women delivering at the study\u2010hospitals in the period (facility\u2010based), and 2) 1 215 women with live births at one study\u2010hospital in the period (selected).\u2002<jats:italic>Methods.<\/jats:italic>\u2002Information from cases and selected controls was collected from medical records. Data on facility\u2010based controls were provided by the Medical Birth Registry of Norway. Data were analyzed using chi\u2010squared test and logistic regression.\u2002<jats:italic>Main outcome measures.<\/jats:italic>\u2002Incidence of IUFD and adjusted odds ratios of risk factors.\u2002<jats:italic>Results.<\/jats:italic>\u2002The incidence was 4.1\/1 000 deliveries. Small\u2010for\u2010gestational age (SGA) and placental abruption were the strongest risk factors for IUFD. Hypertensive disorders were of low risk if not associated with SGA. Low to moderate risk factors were pre\u2010pregnancy diabetes mellitus, thyroid disease, placenta previa, gestational diabetes, smoking and twin pregnancy. Advanced maternal age was significant when compared with facility\u2010based controls. Risk estimates pointed in the same direction independent of control\u2010group. Hypertension appeared overestimated when using facility\u2010based controls, whereas advanced age was underestimated in the analysis among selected controls.\u2002<jats:italic>Conclusion.<\/jats:italic>\u2002SGA has a strong association with IUFD, and the risk of hypertensive disorders is mediated through SGA. The other risk factors, except placental abruption, are of low prevalence and of limited importance in the prevention of a relatively low incidence, although dramatic, event like IUFD.<\/jats:p>","DOI":"10.1111\/j.1600-0412.2011.01079.x","type":"journal-article","created":{"date-parts":[[2011,1,25]],"date-time":"2011-01-25T08:54:39Z","timestamp":1295945679000},"page":"390-397","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Incidence and risk factors of fetal death in Norway: a case\u2010control study"],"prefix":"10.1111","volume":"90","author":[{"given":"LINDA BJ\u00d6RK","family":"HELGADOTTIR","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"FINN EGIL","family":"SKJELDESTAD","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"ANNE FLEM","family":"JACOBSEN","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"PER MORTEN","family":"SANDSET","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"EVA\u2010MARIE","family":"JACOBSEN","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2011,3,4]]},"reference":[{"key":"e_1_2_8_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2005.03.074"},{"key":"e_1_2_8_3_2","unstructured":"Confidential Enquiry into Maternal and Child Health. 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