{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T21:32:18Z","timestamp":1790112738717,"version":"4.0.1"},"reference-count":43,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2022,3,4]],"date-time":"2022-03-04T00:00:00Z","timestamp":1646352000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004359","name":"Vetenskapsr\u00e5det","doi-asserted-by":"publisher","award":["4\u20102979\/2020"],"award-info":[{"award-number":["4\u20102979\/2020"]}],"id":[{"id":"10.13039\/501100004359","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100006636","name":"Forskningsr\u00e5det om H\u00e4lsa, Arbetsliv och V\u00e4lf\u00e4rd","doi-asserted-by":"publisher","award":["4\u20102702\/2019"],"award-info":[{"award-number":["4\u20102702\/2019"]}],"id":[{"id":"10.13039\/501100006636","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Paediatric Perinatal Epid"],"published-print":{"date-parts":[[2022,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>The most important knowledge gap in connection with obstetric management for time of delivery in term low\u2010risk pregnancies relates to the absence of information on long\u2010term neurodevelopmental outcomes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objectives<\/jats:title><jats:p>We examined risks of stillbirth, infant mortality, cerebral palsy (CP) and epilepsy among low\u2010risk pregnancies.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>In this population\u2010based Swedish study, we identified, from 1998 to 2019, 1,773,269 singleton infants born between 37 and 42 completed weeks in women with low\u2010risk pregnancies. Poisson log\u2010linear regression models were used to examine the association between gestational age at delivery and stillbirth, infant mortality, CP and epilepsy. Adjusted rate ratios (RR) and 95% confidence intervals expressing the effect of birth at a particular gestational week compared with birth at a later gestational week were estimated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Compared with those born at a later gestation, RRs for stillbirth and infant mortality were higher among births at 37\u00a0weeks' and 38\u00a0weeks' gestation. The RRs for infant mortality were approximately 20% and 25% lower among births at 40 or 41\u00a0weeks compared with those born at later gestation, respectively. Infants born at 37 and 38\u00a0weeks also had higher RRs for CP (vs infants born at \u226538 and \u226539\u00a0weeks, respectively), while those born at 39\u00a0gestation had similar RRs (vs infants born at \u226540\u00a0weeks); infants born at 40 and 41\u00a0weeks had lower RRs of CP (vs those born at \u226541 and 42\u00a0weeks, respectively). The RRs for epilepsy were higher in those born at 37 and 38\u00a0weeks compared with those born at later gestation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Among low\u2010risk pregnancies, birth at 37 or 38 completed weeks' gestation is associated with increased risks of stillbirth, infant mortality and neurological morbidity, while birth at 39\u201340 completed weeks is associated with reduced risks compared with births at later gestation.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ppe.12868","type":"journal-article","created":{"date-parts":[[2022,3,4]],"date-time":"2022-03-04T11:53:55Z","timestamp":1646394835000},"page":"577-587","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Time of delivery among low\u2010risk women at 37\u201342\u00a0weeks of gestation and risks of stillbirth and infant mortality, and long\u2010term neurological morbidity"],"prefix":"10.1111","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1273-0110","authenticated-orcid":false,"given":"Neda","family":"Razaz","sequence":"first","affiliation":[{"name":"Clinical Epidemiology Division Department of Medicine Solna Karolinska Institutet  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giulia M.","family":"Muraca","sequence":"additional","affiliation":[{"name":"Clinical Epidemiology Division Department of Medicine Solna Karolinska Institutet  Stockholm Sweden"},{"name":"Department of Obstetrics and Gynaecology BC Children\u2019s and Women\u2019s Hospital and Health Centre and the University of British Columbia  Vancouver BC Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katharina","family":"Fink","sequence":"additional","affiliation":[{"name":"Department of Clinical Neuroscience Karolinska Institutet  Stockholm Sweden"},{"name":"Centrum for Neurology Academical Specialist Center  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1907-2920","authenticated-orcid":false,"given":"Am\u00e9lie","family":"Boutin","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology BC Children\u2019s and Women\u2019s Hospital and Health Centre and the University of British Columbia  Vancouver BC Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1119-8772","authenticated-orcid":false,"given":"Sid","family":"John","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology BC Children\u2019s and Women\u2019s Hospital and Health Centre and the University of British Columbia  Vancouver BC Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sarka","family":"Lisonkova","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology BC Children\u2019s and Women\u2019s Hospital and Health Centre and the University of British Columbia  Vancouver BC Canada"},{"name":"School of Population and Public Health University of British Columbia  Vancouver BC Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1528-4563","authenticated-orcid":false,"given":"Olof","family":"Stephansson","sequence":"additional","affiliation":[{"name":"Clinical Epidemiology Division Department of Medicine Solna Karolinska Institutet  Stockholm Sweden"},{"name":"Department of Women\u2019s Health Karolinska University Hospital  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0805-8093","authenticated-orcid":false,"given":"Sven","family":"Cnattingius","sequence":"additional","affiliation":[{"name":"Clinical Epidemiology Division Department of Medicine Solna Karolinska Institutet  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2317-5607","authenticated-orcid":false,"given":"K.\u00a0S.","family":"Joseph","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology BC Children\u2019s and Women\u2019s Hospital and Health Centre and the University of British Columbia  Vancouver BC Canada"},{"name":"School of Population and Public Health University of British Columbia  Vancouver BC Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,3,4]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2012.06.082"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2012.03453.x"},{"issue":"7","key":"e_1_2_10_4_1","article-title":"Induction of labour at or beyond 37 weeks' gestation","volume":"7","author":"Middleton P","year":"2020","journal-title":"Cochrane Database Syst Rev"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1177\/1933719112459229"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.2217\/bmm.14.7"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa0803267"},{"issue":"5","key":"e_1_2_10_8_1","article-title":"Induction of labour for improving birth outcomes for women at or beyond term","volume":"5","author":"Middleton P","year":"2018","journal-title":"Cochrane Database Syst Rev"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2019.02.046"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa1800566"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.l6131"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pmed.1003436"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.20140"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.1111\/aogs.13561"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1111\/1471-0528.13807"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1136\/archdischild-2015-309584"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajogmf.2020.100274"},{"key":"e_1_2_10_18_1","unstructured":"Swedish National Board of Health and WelfareThe National Board of Health and Welfare. The Swedish Medical Birth Register. A summary of content and quality. 2014. Accessed September 2019.https:\/\/wwwsocialstyrelsense\/globalassets\/sharepoint\u2010dokument\/artikelkatalog\/ovrigt\/2003\u2010112\u20103_20031123pdf"},{"key":"e_1_2_10_19_1","unstructured":"Swedish National Board of Health and Welfare.Quality and content in the Swedish Patient Register.2013. Accessed September 2019.https:\/\/wwwsocialstyrelsense\/globalassets\/sharepoint\u2010dokument\/dokument\u2010webb\/statistik\/information\u2010in\u2010the\u2010national\u2010patient\u2010registerpdf"},{"key":"e_1_2_10_20_1","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2458-11-450"},{"key":"e_1_2_10_21_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10654-017-0316-1"},{"key":"e_1_2_10_22_1","unstructured":"SwedenS.Educational attainment in the population. Accessed September 2019 April 2019.https:\/\/wwwscbse\/en\/finding\u2010statistics\/statistics\u2010by\u2010subject\u2010area\/education\u2010and\u2010research\/education\u2010of\u2010the\u2010population\/educational\u2010attainment\u2010of\u2010the\u2010population\/"},{"key":"e_1_2_10_23_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10654-016-0117-y"},{"key":"e_1_2_10_24_1","doi-asserted-by":"publisher","DOI":"10.1093\/aje\/kwh090"},{"key":"e_1_2_10_25_1","doi-asserted-by":"publisher","DOI":"10.1037\/a0031034"},{"key":"e_1_2_10_26_1","doi-asserted-by":"publisher","DOI":"10.1093\/aje\/kwr045"},{"key":"e_1_2_10_27_1","doi-asserted-by":"publisher","DOI":"10.1002\/sim.4067"},{"key":"e_1_2_10_28_1","doi-asserted-by":"publisher","DOI":"10.7326\/M16-2607"},{"key":"e_1_2_10_29_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1651-2227.1996.tb14164.x"},{"key":"e_1_2_10_30_1","doi-asserted-by":"publisher","DOI":"10.1093\/ije\/dyu249"},{"key":"e_1_2_10_31_1","doi-asserted-by":"publisher","DOI":"10.1097\/01.AOG.0000454932.15177.be"},{"key":"e_1_2_10_32_1","doi-asserted-by":"publisher","DOI":"10.1111\/aogs.13644"},{"key":"e_1_2_10_33_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10654-019-00590-7"},{"key":"e_1_2_10_34_1","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2016-2002"},{"key":"e_1_2_10_35_1","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2015-3334"},{"key":"e_1_2_10_36_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0029-7844(99)00387-7"},{"key":"e_1_2_10_37_1","doi-asserted-by":"publisher","DOI":"10.1067\/mpd.2001.114694"},{"key":"e_1_2_10_38_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.d7400"},{"key":"e_1_2_10_39_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0000000000003743"},{"key":"e_1_2_10_40_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10654-017-0340-1"},{"key":"e_1_2_10_41_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2011.03128.x"},{"key":"e_1_2_10_42_1","doi-asserted-by":"publisher","DOI":"10.1097\/GRF.0b013e3181870994"},{"key":"e_1_2_10_43_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.placenta.2011.04.004"},{"key":"e_1_2_10_44_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.theriogenology.2006.03.040"}],"container-title":["Paediatric and Perinatal Epidemiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/ppe.12868","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/ppe.12868","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/ppe.12868","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,24]],"date-time":"2023-08-24T07:38:12Z","timestamp":1692862692000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/ppe.12868"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,3,4]]},"references-count":43,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2022,7]]}},"alternative-id":["10.1111\/ppe.12868"],"URL":"https:\/\/doi.org\/10.1111\/ppe.12868","archive":["Portico"],"relation":{},"ISSN":["0269-5022","1365-3016"],"issn-type":[{"value":"0269-5022","type":"print"},{"value":"1365-3016","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,3,4]]},"assertion":[{"value":"2021-08-26","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-01-18","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-03-04","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}