{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T19:28:45Z","timestamp":1789759725614,"version":"4.0.1"},"reference-count":30,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2023,3,21]],"date-time":"2023-03-21T00:00:00Z","timestamp":1679356800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Paediatrica"],"published-print":{"date-parts":[[2023,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>Organisation of care, perinatal and neonatal management of very preterm infants in the Nordic regions were hypothesised to vary significantly. The aim of this observational study was to test this hypothesis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Information on preterm infants in the 21 greater healthcare regions of Denmark, Finland, Iceland, Norway and Sweden was gathered from national registers in 2021. Preterm birth rates, case\u2010mix, perinatal interventions, neonatal morbidity and survival to hospital discharge in very (&lt;32\u2009weeks) and extremely preterm infants (&lt;28\u2009weeks of gestational age) were compared.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Out of 287\u2009642 infants born alive, 16\u2009567 (5.8%) were preterm, 2389 (0.83%) very preterm and 800 (0.28%) were extremely preterm. In very preterm infants, exposure to antenatal corticosteroids varied from 85% to 98%, live births occurring at regional centres from 48% to 100%, surfactant treatment from 28% to 69% and use of mechanical ventilation varied from 13% to 77% (<jats:italic>p<\/jats:italic>\u00a0&lt;\u20090.05 for all comparisons). Significant regional variations within and between countries were also seen in capacity in neonatal care, case\u2010mix and number of admissions, whereas there were no statistically significant differences in survival or major neonatal morbidities.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Management of very preterm infants exhibited significant regional variations in the Nordic countries.<\/jats:p><\/jats:sec>","DOI":"10.1111\/apa.16753","type":"journal-article","created":{"date-parts":[[2023,3,13]],"date-time":"2023-03-13T14:39:20Z","timestamp":1678718360000},"page":"1422-1433","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Preterm birth in the Nordic countries\u2014Capacity, management and outcome in neonatal care"],"prefix":"10.1111","volume":"112","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4191-3781","authenticated-orcid":false,"given":"Mikael","family":"Norman","sequence":"first","affiliation":[{"name":"Department of Clinical Science, Intervention and Technology Karolinska Institutet  Stockholm Sweden"},{"name":"Department of Neonatal Medicine Karolinska University Hospital  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jesper","family":"Padk\u00e6r\u00a0Petersen","sequence":"additional","affiliation":[{"name":"The Danish Clinical Quality Program \u2013 National Clinical Registries (RKKP)  Aarhus Denmark"},{"name":"Department of Paediatrics Aarhus University Hospital  Aarhus Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hans J\u00f8rgen","family":"Stensvold","sequence":"additional","affiliation":[{"name":"Department of Neonatal Intensive Care, Clinic of Paediatric and Adolescent Medicine Oslo University Hospital  Oslo 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