{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T11:03:20Z","timestamp":1740135800785,"version":"3.37.3"},"reference-count":31,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2015,6,25]],"date-time":"2015-06-25T00:00:00Z","timestamp":1435190400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100000925","name":"National Health and Medical Research Council","doi-asserted-by":"publisher","award":["572742"],"award-info":[{"award-number":["572742"]}],"id":[{"id":"10.13039\/501100000925","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Paediatric Perinatal Epid"],"published-print":{"date-parts":[[2015,7]]},"abstract":"Abstract<\/jats:title>Background<\/jats:title>The caesarean delivery rate in the developed world has been increasing. It is not well understood how caesarean delivery rates have changed by gestational age at birth in W<\/jats:styled-content>estern A<\/jats:styled-content>ustralia, particularly in relation to the introduction of the early\u2010term delivery guidelines in A<\/jats:styled-content>ustralia in 2006.<\/jats:p><\/jats:sec>Methods<\/jats:title>Data from the W<\/jats:styled-content>estern A<\/jats:styled-content>ustralian M<\/jats:styled-content>idwives N<\/jats:styled-content>otification S<\/jats:styled-content>ystem were used to identify 193\u2009136 singletons born to primiparous women at 34\u201342 weeks' gestation during 1995\u20132010. Caesarean delivery rates were calculated by gestational age group (34\u201336 weeks, 37\u201338 weeks, and 39\u201342 weeks) and stratified into pre\u2010labour and in\u2010labour caesarean delivery. The average annual per\u2009cent change (AAPC<\/jats:styled-content>) for the caesarean delivery rates was calculated using joinpoint regression. Log\u2010binomial regression was used to estimate the risk of having a caesarean delivery while adjusting for maternal and antenatal factors.<\/jats:p><\/jats:sec>Results<\/jats:title>Caesarean delivery rates rose steadily from 1995 to 2005 (AAPC<\/jats:styled-content>\u2009=\u20095.9%, [95% confidence interval (CI<\/jats:styled-content>) 4.9, 6.9]), but stabilised since then (AAPC<\/jats:styled-content>\u2009=\u20090.9%, [95% CI<\/jats:styled-content> \u22121.9, 3.8]). The rate of in\u2010labour caesarean deliveries rose consistently from 1995 to 2010 across all gestational age groups. The pre\u2010labour caesarean delivery rate rise was most dominant at 37\u201338 weeks' gestation from 1995 to 2005 (AAPC<\/jats:styled-content>\u2009=\u20096.8%, [95% CI<\/jats:styled-content> 5.4, 8.2]), but declined during 2006\u201310 (AAPC<\/jats:styled-content>\u2009=\u2009\u22124.5, [95% CI<\/jats:styled-content> \u22126.7, \u22122.3]), while at the same time the rate at 39\u201342 weeks rose slightly.<\/jats:p><\/jats:sec>Conclusions<\/jats:title>The rise in pre\u2010labour caesarean deliveries during 1995\u20132005 occurred predominantly at 37\u201338 weeks' gestation, but declined again from 2006 to 2010. This suggests that the recently developed A<\/jats:styled-content>ustralian early\u2010term delivery guidelines may have had some success in reducing early\u2010term deliveries in W<\/jats:styled-content>estern A<\/jats:styled-content>ustralia.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ppe.12202","type":"journal-article","created":{"date-parts":[[2015,6,27]],"date-time":"2015-06-27T02:17:12Z","timestamp":1435371432000},"page":"290-298","source":"Crossref","is-referenced-by-count":4,"title":["Changes in Caesarean Delivery Rates in W<\/scp>estern A<\/scp>ustralia from 1995 to 2010 by Gestational Age at Birth"],"prefix":"10.1111","volume":"29","author":[{"given":"Kristjana","family":"Einarsd\u00f3ttir","sequence":"first","affiliation":[{"name":"Telethon Kids Institute University of Western Australia Perth WA Australia"},{"name":"Centre of Public Health Sciences and Unit for Nutrition Research School of Health Sciences University of Iceland Reykjavik Iceland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stephen","family":"Ball","sequence":"additional","affiliation":[{"name":"Pre\u2010Hospital Resuscitation & Emergency Care Research Unit (PRECRU) School of Nursing Midwifery & Paramedicine Curtin University Bentley WA Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gavin","family":"Pereira","sequence":"additional","affiliation":[{"name":"Telethon Kids Institute University of Western Australia Perth WA Australia"},{"name":"Center for Perinatal Pediatric and Environmental Epidemiology School of Medicine Yale University New Haven CT"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christopher","family":"Griffin","sequence":"additional","affiliation":[{"name":"King Edward Memorial Hospital Perth WA Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Jacoby","sequence":"additional","affiliation":[{"name":"Telethon Kids Institute University of Western Australia Perth WA Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nick","family":"de Klerk","sequence":"additional","affiliation":[{"name":"Telethon Kids Institute University of Western Australia Perth WA Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Helen","family":"Leonard","sequence":"additional","affiliation":[{"name":"Telethon Kids Institute University of Western Australia Perth WA Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fiona J.","family":"Stanley","sequence":"additional","affiliation":[{"name":"Telethon Kids Institute University of Western Australia Perth WA Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2015,6,25]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1701-2163(16)30645-4"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.clp.2008.03.007"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2007.01307.x"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmjopen-2012-001725"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2393-11-8"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1053\/j.semperi.2006.01.009"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0056238"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1097\/EDE.0b013e318280da0f"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2012.07.022"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpeds.2012.02.005"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1097\/01.AOG.0000428649.57622.a7"},{"key":"e_1_2_6_13_1","unstructured":"MainE OshiroB ChagollaB BinghamD Dang\u2010KilduffL KowalewskiL.Elimination of Non\u2010Medically Indicated (Elective) Deliveries Before 39 Weeks Gestational Age. 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