{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T00:40:52Z","timestamp":1747183252769,"version":"3.40.5"},"reference-count":30,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2023,9,26]],"date-time":"2023-09-26T00:00:00Z","timestamp":1695686400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003035","name":"Aase og Ejnar Danielsens Fond","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003035","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100010809","name":"Jascha Fonden","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100010809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100009418","name":"Nordsj\u00e6llands Hospital","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100009418","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100005111","name":"Rigshospitalet","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100005111","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008455","name":"Ville Heises Legat","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100008455","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Paediatrica"],"published-print":{"date-parts":[[2024,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>To investigate the association between gestational age (GA) and grade point averages by domains of language and mathematics at the end of lower secondary education.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A nationwide register\u2010based study including all Danish children born in 1992\u20131997 who completed lower secondary education. Grades were evaluated by GA. Domain\u2010specific differences in grades were investigated, and academic profiles were made.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The study population comprised 319\u2009796 children. For language, only minor differences in grades were observed. The grades in mathematics ranged from 7.02 (95% confidence interval [CI]: 7.00\u20137.04) at GA\u2009=\u200940\u2009weeks to 5.86 (95% CI: 5.61\u20136.11) at GA &lt;28\u2009weeks. Grade differences showed lower grades in mathematics, compared to language, below GA 33\u201335\u2009weeks. The academic profile of mathematical difficulties was more prevalent among GA &lt;32\u2009weeks. Average\/high grades within both domains represented the predominant academic profile, constituting 68.8% at GA 39\u201341\u2009weeks and 56.6% at GA &lt;28\u2009weeks.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Only in mathematics decreasing GA was associated with lower grades. Increased mathematical difficulties were found below GA 33\u201335\u2009weeks. The academic profile of mathematical difficulties was more prevalent among GA &lt;32\u2009weeks. However, the absolute differences in grades were small, and the predominant academic profile was average\/high grades within both domains across all GA.<\/jats:p><\/jats:sec>","DOI":"10.1111\/apa.16976","type":"journal-article","created":{"date-parts":[[2023,9,26]],"date-time":"2023-09-26T08:16:20Z","timestamp":1695716180000},"page":"212-220","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Preterm children born below 33\u201335\u2009weeks of gestation have an increased risk of mathematical difficulties"],"prefix":"10.1111","volume":"113","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6794-436X","authenticated-orcid":false,"given":"Rikke","family":"Wiingreen","sequence":"first","affiliation":[{"name":"Department of Paediatrics Copenhagen University Hospital \u2010 North Zealand  Hilleroed Denmark"},{"name":"Department of Neonatology, Juliane Marie Center Copenhagen University Hospital \u2010 Rigshospitalet  Copenhagen Denmark"},{"name":"Department of Clinical Medicine University of Copenhagen  Copenhagen Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8042-3262","authenticated-orcid":false,"given":"Gorm","family":"Greisen","sequence":"additional","affiliation":[{"name":"Department of Neonatology, Juliane Marie Center Copenhagen University Hospital \u2010 Rigshospitalet  Copenhagen Denmark"},{"name":"Department of Clinical Medicine University of Copenhagen  Copenhagen Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ellen C. L.","family":"L\u00f8kkegaard","sequence":"additional","affiliation":[{"name":"Department of Clinical Medicine University of Copenhagen  Copenhagen Denmark"},{"name":"Department of Obstetrics and Gynecology Copenhagen University Hospital \u2010 North Zealand  Hilleroed Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christian","family":"Torp\u2010Pedersen","sequence":"additional","affiliation":[{"name":"Department of Cardiology Copenhagen University Hospital \u2010 North Zealand  Hilleroed Denmark"},{"name":"Department of Public Health University of Copenhagen  Copenhagen Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kathrine K.","family":"S\u00f8rensen","sequence":"additional","affiliation":[{"name":"Department of Cardiology Copenhagen University Hospital \u2010 North Zealand  Hilleroed Denmark"},{"name":"Department of Public Health University of Copenhagen  Copenhagen Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mikkel P.","family":"Andersen","sequence":"additional","affiliation":[{"name":"Department of Cardiology Copenhagen University Hospital \u2010 North Zealand  Hilleroed Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3087-3983","authenticated-orcid":false,"given":"Bo M.","family":"Hansen","sequence":"additional","affiliation":[{"name":"Department of Paediatrics Copenhagen University Hospital \u2010 North Zealand  Hilleroed Denmark"},{"name":"Department of Clinical Medicine University of Copenhagen  Copenhagen Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2023,9,26]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pmed.1000289"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2009-0829"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0198482"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1159\/000338099"},{"key":"e_1_2_11_6_1","doi-asserted-by":"publisher","DOI":"10.1093\/ije\/dyw284"},{"key":"e_1_2_11_7_1","doi-asserted-by":"publisher","DOI":"10.1001\/jamanetworkopen.2020.2027"},{"key":"e_1_2_11_8_1","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2008-2816"},{"key":"e_1_2_11_9_1","doi-asserted-by":"publisher","DOI":"10.1542\/peds.105.2.325"},{"key":"e_1_2_11_10_1","doi-asserted-by":"publisher","DOI":"10.2223\/JPED.1429"},{"key":"e_1_2_11_11_1","doi-asserted-by":"publisher","DOI":"10.1136\/archdischild-2017-312916"},{"key":"e_1_2_11_12_1","unstructured":"WilkenT OlesenAM.Grundskolen: pigerne \u00f8ger forsat afstanden til drengene. 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