{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T17:06:59Z","timestamp":1784308019601,"version":"3.55.0"},"reference-count":44,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2026,4,16]],"date-time":"2026-04-16T00:00:00Z","timestamp":1776297600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,4,16]],"date-time":"2026-04-16T00:00:00Z","timestamp":1776297600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Paediatrica"],"published-print":{"date-parts":[[2026,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Aim<\/jats:title>\n                    <jats:p>To explore trends and main causes of infant mortality in Norwegian live\u2010born infants (LBIs) from 2009 through 2020 and assess how trends differ by gestational age (GA).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Population\u2010based cohort study of infant deaths using data from the Medical Birth Registry of Norway and the Norwegian Cause of Death Registry.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The study population consisted of 676\u2009931 LBIs (48.6% female), of which 1583 (2.3 per 1000 LBIs) died in infancy (43% female). There was a linear decline in the infant mortality from 2.9 to 1.7 per 1000 LBIs (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). Age of death remained stable; 70% occurred in the neonatal period and 30% occurred within the first 24\u2009h. The main causes of death were in descending order: prematurity\u2010related (39.6%), malformations\/chromosomal abnormalities (27.0%), asphyxia\/neonatal encephalopathy (12.4%), other (11.0%), SIDS (6.8%) and infections (3.2%). The highest mortality rate, and the most pronounced decline, was observed among extremely preterm infants (below 28\u2009weeks), declining from 363 to 227 per 1000.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The infant mortality rate declined by more than 40% from 2009 to 2020. Around 70% of all infant deaths occurred in the neonatal period. Prematurity\u2010related mortality was the most common cause of death but showed the greatest decline.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/apa.70548","type":"journal-article","created":{"date-parts":[[2026,4,17]],"date-time":"2026-04-17T06:33:46Z","timestamp":1776407626000},"page":"1700-1707","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Infant Mortality in Norway: A Population\u2010Based Study From 2009 Through 2020"],"prefix":"10.1111","volume":"115","author":[{"given":"Beate Horsberg","family":"Eriksen","sequence":"first","affiliation":[{"name":"Department of Pediatrics M\u00f8re and Romsdal Hospital Trust  \u00c5lesund Norway"},{"name":"Department of Public Health and Nursing Norwegian University of Science and Technology  Trondheim Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6950-1573","authenticated-orcid":false,"given":"Claus","family":"Klingenberg","sequence":"additional","affiliation":[{"name":"Department of Pediatrics and Adolescence Medicine University Hospital of North Norway  Troms\u00f8 Norway"},{"name":"Research Group for Child and Adolescent Health, Faculty of Health Sciences UiT\u2010The Arctic University of Norway  Troms\u00f8 Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tor \u00c5ge","family":"Myklebust","sequence":"additional","affiliation":[{"name":"Department of Registration, Cancer Registry Norway Norwegian Institute of Public Health  Oslo Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,4,16]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(10)60703-9"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.1001\/jamapediatrics.2022.1622"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/hec.3314"},{"key":"e_1_2_12_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/S2352-4642(21)00311-4"},{"key":"e_1_2_12_6_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa1403489"},{"key":"e_1_2_12_7_1","doi-asserted-by":"publisher","DOI":"10.1097\/01.PCC.0000128893.23327.C1"},{"key":"e_1_2_12_8_1","doi-asserted-by":"publisher","DOI":"10.1038\/pr.2018.1"},{"key":"e_1_2_12_9_1","doi-asserted-by":"publisher","DOI":"10.1086\/JCE2019301035"},{"issue":"13","key":"e_1_2_12_10_1","first-page":"1","article-title":"Deaths: Leading Causes for 2020","volume":"72","author":"Curtin S. 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