{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T06:48:24Z","timestamp":1784789304087,"version":"3.55.0"},"reference-count":28,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2019,7,9]],"date-time":"2019-07-09T00:00:00Z","timestamp":1562630400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001774","name":"University of Sydney","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001774","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000925","name":"National Health and Medical Research Council","doi-asserted-by":"publisher","award":["APP1144911"],"award-info":[{"award-number":["APP1144911"]}],"id":[{"id":"10.13039\/501100000925","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Aust NZ J Obst Gynaeco"],"published-print":{"date-parts":[[2019,12]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Induction of labour is associated with a reduction in caesarean delivery, but the mechanism of action and which groups of women might benefit remain unknown.<\/jats:p><\/jats:sec><jats:sec><jats:title>Aims<\/jats:title><jats:p>To assess the association between induction of labour at 38\u201339\u00a0weeks pregnancy, and caesarean delivery: (i) overall; (ii) for slow progress in labour; and (iii) for suspected fetal compromise.<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and methods<\/jats:title><jats:p>Retrospective observational study in two Sydney hospitals from 2009 to 2016, among nulliparous women with induction of labour at 38 or 39 completed weeks pregnancy and a singleton, cephalic presenting fetus. The comparator was all planned vaginal births beyond 39<jats:sup>(+1\/7)<\/jats:sup> weeks, whether or not labour was induced. Binary and multinomial multiple logistic regressions adjusting for multiple confounders were performed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>There were 2388 and 15\u00a0259 women\u00a0in the study and comparison groups\u00a0respectively. Induction of labour was associated with caesarean delivery overall only for women &lt;25\u00a0years of age (adjusted odds ratio 1.63; 95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 1.17\u20132.27) and was not associated with caesarean delivery for slow progress. Induction of labour was positively associated with increased caesarean delivery for suspected fetal compromise among young women (&lt;30\u00a0years), with the association weakening as maternal age increased. The association between induction of labour and caesarean delivery was different for slow progress compared with suspected compromise (<jats:italic>P<\/jats:italic>\u00a0=\u00a00.005).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Induction of labour has different effects on the likelihood of caesarean delivery for slow progress and for suspected fetal compromise. Women &lt;30\u00a0years of age are at higher risk of caesarean delivery for suspected fetal compromise, potentially due to uterine hyperstimulation.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ajo.13006","type":"journal-article","created":{"date-parts":[[2019,7,9]],"date-time":"2019-07-09T09:14:33Z","timestamp":1562663673000},"page":"791-798","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["The association between induction of labour at 38 to 39\u00a0weeks pregnancy and indication for caesarean delivery: An observational study"],"prefix":"10.1111","volume":"59","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5620-0170","authenticated-orcid":false,"given":"Bradley Stephen","family":"de Vries","sequence":"first","affiliation":[{"name":"School of Public Health University of Sydney Sydney New South Wales Australia"},{"name":"RPA Women and Babies Royal Prince Alfred Hospital Sydney New South Wales Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kevin","family":"McGeechan","sequence":"additional","affiliation":[{"name":"School of Public Health University of Sydney Sydney New South Wales Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexandra","family":"Barratt","sequence":"additional","affiliation":[{"name":"Wiser Health Care, School of Public Health University of Sydney Sydney New South Wales Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jane","family":"Tooher","sequence":"additional","affiliation":[{"name":"RPA Women and Babies Royal Prince Alfred Hospital Sydney New South Wales Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ebony","family":"Wong","sequence":"additional","affiliation":[{"name":"RPA Women and Babies Royal Prince Alfred Hospital Sydney New South Wales Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hala","family":"Phipps","sequence":"additional","affiliation":[{"name":"Sydney Local Area Health District Sydney New South Wales Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2328-1066","authenticated-orcid":false,"given":"Adrienne","family":"Gordon","sequence":"additional","affiliation":[{"name":"Discipline of Obstetrics, Gynaecology and Neonatology University of Sydney Sydney New South Wales Australia"},{"name":"Charles Perkins Centre The University of Sydney Sydney New South Wales Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jon Anthony","family":"Hyett","sequence":"additional","affiliation":[{"name":"Department of High Risk Obstetrics RPA Women and Babies Royal Prince Alfred Hospital Sydney New South Wales Australia"},{"name":"Central Clinical School Discipline of Obstetrics, Gynaecology and Neonatology University of Sydney Sydney New South Wales Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2019,7,9]]},"reference":[{"key":"e_1_2_7_2_1","unstructured":"Australian Institute of Health and Welfare 2018.Australia's mothers and babies 2016\u2014in brief. 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