{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T13:00:45Z","timestamp":1777381245797,"version":"3.51.4"},"reference-count":27,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2019,4,24]],"date-time":"2019-04-24T00:00:00Z","timestamp":1556064000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["BJOG"],"published-print":{"date-parts":[[2019,9]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To assess intrapartum\/neonatal mortality and morbidity risk in infants born at 37\u00a0weeks of gestation compared with infants born at 39\u201341\u00a0weeks of gestation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Design<\/jats:title><jats:p>Nationwide cohort study.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting<\/jats:title><jats:p>The Netherlands.<\/jats:p><\/jats:sec><jats:sec><jats:title>Population<\/jats:title><jats:p>A total of 755\u00a0198 women delivering at term of a singleton without congenital malformations during 2010\u201314.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We used data from the national perinatal registry (<jats:styled-content style=\"fixed-case\">PERINED<\/jats:styled-content>). Analysis was performed with logistic regression and stratification for the way labour started and type of care.<\/jats:p><\/jats:sec><jats:sec><jats:title>Main outcome measures<\/jats:title><jats:p>Intrapartum or neonatal mortality up to 28\u00a0days and adverse neonatal outcome (neonatal mortality, 5\u2010minute Apgar &lt;7, and\/or neonatal intensive care unit admission).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>At 37\u00a0weeks of gestation intrapartum\/neonatal mortality was 1.10\u2030 compared with 0.59\u2030 at 39\u201341\u00a0weeks (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.0001). Adjusted odds ratio (<jats:styled-content style=\"fixed-case\">aOR<\/jats:styled-content>) for 37\u00a0weeks compared with 39\u201341\u00a0weeks was 1.84 (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content>) 1.39\u20132.44). Adverse neonatal outcome at 37\u00a0weeks was 21.4\u2030 compared with 12.04\u2030 at 39\u201341\u00a0weeks (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.0001) with an <jats:styled-content style=\"fixed-case\">aOR<\/jats:styled-content> 1.63 (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 1.53\u20131.74). Spontaneous start of labour at 37\u00a0weeks of gestation was significantly associated with increased intrapartum\/neonatal mortality with an <jats:styled-content style=\"fixed-case\">aOR<\/jats:styled-content> of 2.20 (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 1.56\u20133.10), in both primary (midwifery\u2010led) care and specialist care. Neither induction of labour nor planned caesarean section showed increased intrapartum\/neonatal mortality risk.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Birth at 37\u00a0weeks of gestation is independently associated with a higher frequency of clinically relevant adverse perinatal outcomes than birth at 39\u201341\u00a0weeks. In particular, spontaneous start of labour at 37\u00a0weeks of gestation doubles the risk for intrapartum\/neonatal mortality. Extra fetal monitoring is warranted.<\/jats:p><\/jats:sec><jats:sec><jats:title>Tweetable abstract<\/jats:title><jats:p>Birth at 37\u00a0weeks of gestation gives markedly higher intrapartum\/neonatal mortality risk than at 39\u201341\u00a0weeks, especially with spontaneous start of labour.<\/jats:p><\/jats:sec>","DOI":"10.1111\/1471-0528.15748","type":"journal-article","created":{"date-parts":[[2019,4,4]],"date-time":"2019-04-04T14:18:28Z","timestamp":1554387508000},"page":"1252-1257","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["The risk of intrapartum\/neonatal mortality and morbidity following birth at 37\u00a0weeks of gestation: a nationwide cohort study"],"prefix":"10.1111","volume":"126","author":[{"given":"M","family":"Eskes","sequence":"first","affiliation":[{"name":"Department of Medical Informatics Amsterdam University Medical Centre Amsterdam the Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S","family":"Ensing","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology Amsterdam University Medical Centre Amsterdam the Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"F","family":"Groenendaal","sequence":"additional","affiliation":[{"name":"Department of Neonatology Wilhelmina Children's Hospital University Medical Centre Utrecht and Utrecht University Utrecht the Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A","family":"Abu\u2010Hanna","sequence":"additional","affiliation":[{"name":"Department of Medical Informatics Amsterdam University Medical Centre Amsterdam the Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"ACJ","family":"Ravelli","sequence":"additional","affiliation":[{"name":"Department of Medical Informatics Amsterdam University Medical Centre Amsterdam the Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2019,4,24]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpeds.2007.05.002"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2012.07.022"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1001\/jamapediatrics.2013.2581"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0b013e3181e24f28"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.3109\/14767058.2014.916266"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12519-015-0049-8"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejogrb.2014.04.042"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0b013e31825bd286"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2014.03.021"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1111\/1471-0528.13191"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpeds.2008.09.013"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.1093\/ije\/dyt251"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0b013e3182179e28"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2393-12-62"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2004.06.068"},{"key":"e_1_2_6_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2014.03.016"},{"key":"e_1_2_6_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2008.08.008"},{"key":"e_1_2_6_19_1","doi-asserted-by":"publisher","DOI":"10.3414\/ME0489"},{"key":"e_1_2_6_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jclinepi.2006.11.021"},{"key":"e_1_2_6_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.earlhumdev.2009.09.008"},{"key":"e_1_2_6_22_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.1998.tb10047.x"},{"key":"e_1_2_6_23_1","doi-asserted-by":"publisher","DOI":"10.1097\/01.AOG.0000109216.24211.D4"},{"key":"e_1_2_6_24_1","first-page":"120","article-title":"Birth asphyxia: does the Apgar score have diagnostic value?","volume":"72","author":"Marrin M","year":"1988","journal-title":"Obstet Gynecol"},{"key":"e_1_2_6_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejogrb.2006.03.002"},{"key":"e_1_2_6_26_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM200102153440701"},{"key":"e_1_2_6_27_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1553-7250(06)32065-X"},{"key":"e_1_2_6_28_1","doi-asserted-by":"publisher","DOI":"10.1097\/01.AOG.0000227783.65800.0f"}],"container-title":["BJOG: An International Journal of Obstetrics &amp; 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