{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,20]],"date-time":"2026-09-20T19:29:17Z","timestamp":1789932557746,"version":"4.0.1"},"reference-count":0,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2017,11,20]],"date-time":"2017-11-20T00:00:00Z","timestamp":1511136000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000317","name":"Action Medical Research","doi-asserted-by":"publisher","award":["GN2156"],"award-info":[{"award-number":["GN2156"]}],"id":[{"id":"10.13039\/501100000317","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001515","name":"Cure Kids","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001515","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100011243","name":"Stillborn and Neonatal Death Charity","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100011243","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["BJOG"],"published-print":{"date-parts":[[2018,1]]},"abstract":"Objective<\/jats:title>To report maternal sleep practices in women who experienced a stillbirth compared with controls with ongoing live pregnancies at similar gestation.<\/jats:p><\/jats:sec>Design<\/jats:title>Prospective case\u2010control study.<\/jats:p><\/jats:sec>Setting<\/jats:title>Forty\u2010one maternity units in the United Kingdom.<\/jats:p><\/jats:sec>Population<\/jats:title>Women who had a stillbirth after \u2265\u00a028\u00a0weeks\u2019 gestation (n<\/jats:italic>\u00a0=\u00a0291) and women with an ongoing pregnancy at the time of interview (n<\/jats:italic>\u00a0=\u00a0733).<\/jats:p><\/jats:sec>Methods<\/jats:title>Data were collected using an interviewer\u2010administered questionnaire that included questions on maternal sleep practices before pregnancy, in the four weeks prior to, and on the night before the interview\/stillbirth.<\/jats:p><\/jats:sec>Main outcome measures<\/jats:title>Maternal sleep practices during pregnancy.<\/jats:p><\/jats:sec>Results<\/jats:title>In multivariable analysis, supine going\u2010to\u2010sleep position the night before stillbirth had a 2.3\u2010fold increased risk of late stillbirth [adjusted Odds Ratio (aOR<\/jats:styled-content>) 2.31, 95% CI<\/jats:styled-content> 1.04\u20135.11] compared with the left side. In addition, women who had a stillbirth were more likely to report sleep duration less than 5.5\u00a0hours on the night before stillbirth (aOR<\/jats:styled-content> 1.83, 95% CI<\/jats:styled-content> 1.24\u20132.68), getting up to the toilet once or less (aOR<\/jats:styled-content> 2.81, 95% CI<\/jats:styled-content> 1.85\u20134.26), and a daytime nap every day (aOR<\/jats:styled-content> 2.22, 95% CI<\/jats:styled-content> 1.26\u20133.94). No interaction was detected between supine going\u2010to\u2010sleep position and a small\u2010for\u2010gestational\u2010age infant, maternal body mass index, or gestational age. The population\u2010attributable risk for supine going\u2010to\u2010sleep position was 3.7% (95% CI<\/jats:styled-content> 0.5\u20139.2).<\/jats:p><\/jats:sec>Conclusions<\/jats:title>This study confirms that supine going\u2010to\u2010sleep position is associated with late stillbirth. Further work is required to determine whether intervention(s) can decrease the frequency of supine going\u2010to\u2010sleep position and the incidence of late stillbirth.<\/jats:p><\/jats:sec>Tweetable abstract<\/jats:title>Supine going\u2010to\u2010sleep position is associated with 2.3\u00d7 increased risk of stillbirth after 28\u00a0weeks\u2019 gestation.<\/jats:p><\/jats:sec>Plain Language Summary<\/jats:title>Stillbirth, the death of a baby before birth, is a tragedy for mothers and families. One approach to reduce stillbirths is to identify factors that are associated with stillbirth. There are few risk factors for stillbirth that can be easily changed, but this study is looking at identifying how mothers may be able to reduce their risk.<\/jats:p>In this study, we interviewed 291 women who had a stillbirth and 733 women who had a live\u2010born baby from 41 maternity units throughout the UK<\/jats:styled-content>. The mothers who had a stillbirth were interviewed as soon as practical after their baby died. Mothers who had a live birth were interviewed during their pregnancies at the same times in pregnancy as when the stillbirths occurred. We did not interview mothers who had twins or who had a baby with a major abnormality.<\/jats:p>Mothers who went to sleep on their back had at least twice the risk of stillbirth compared with mothers who went to sleep on their left\u2010hand side. This study suggests that 3.7% of stillbirths after 28\u00a0weeks of pregnancy were linked with going to sleep lying on the back. This study also shows that the link between going\u2010to\u2010sleep position and late stillbirth was not affected by the duration of pregnancy after 28\u00a0weeks, the size of the baby, or the mother's weight. Women who got up to the toilet once or more at night had a reduced risk of stillbirth.<\/jats:p>This is the largest of four similar studies that have all shown the same link between the position in which a mother goes to sleep and stillbirth after 28\u00a0weeks of pregnancy. Further studies are needed to see whether women can easily change their sleep position in late pregnancy and whether changing the position a mother goes to sleep in reduces stillbirth.<\/jats:p><\/jats:sec>","DOI":"10.1111\/1471-0528.14967","type":"journal-article","created":{"date-parts":[[2017,11,20]],"date-time":"2017-11-20T07:52:36Z","timestamp":1511164356000},"page":"254-262","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":89,"title":["Association between maternal sleep practices and late stillbirth \u2013 findings from a stillbirth case\u2010control study"],"prefix":"10.1111","volume":"125","author":[{"given":"AEP","family":"Heazell","sequence":"first","affiliation":[{"name":"Maternal and Fetal Health Research Centre School of Medical Sciences Faculty of Biology, Medicine and Health University of Manchester Manchester UK"},{"name":"St. Mary's Hospital Manchester University NHS Foundation Trust Manchester Academic Health Science Centre Manchester UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology The University of Auckland Auckland New Zealand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J","family":"Budd","sequence":"additional","affiliation":[{"name":"Maternal and Fetal Health Research Centre School of Medical Sciences Faculty of Biology, Medicine and Health University of Manchester Manchester UK"},{"name":"St. Mary's Hospital Manchester University NHS Foundation Trust Manchester Academic Health Science Centre Manchester UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"JMD","family":"Thompson","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology The University of Auckland Auckland New Zealand"},{"name":"Department of Paediatrics: Child and Youth Health The University of Auckland Auckland New Zealand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T","family":"Stacey","sequence":"additional","affiliation":[{"name":"School of Healthcare University of Leeds Leeds UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"RS","family":"Cronin","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology The University of Auckland Auckland New Zealand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"B","family":"Martin","sequence":"additional","affiliation":[{"name":"Birmingham Women's Hospital NHS Foundation Trust Birmingham UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D","family":"Roberts","sequence":"additional","affiliation":[{"name":"Liverpool Women's Hospital NHS Foundation Trust Liverpool UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"EA","family":"Mitchell","sequence":"additional","affiliation":[{"name":"Department of Paediatrics: Child and Youth Health The University of Auckland Auckland New Zealand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"LME","family":"McCowan","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology The University of Auckland Auckland New Zealand"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2017,11,20]]},"container-title":["BJOG: An International Journal of Obstetrics & Gynaecology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2F1471-0528.14967","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/1471-0528.14967","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,9,13]],"date-time":"2023-09-13T20:50:05Z","timestamp":1694638205000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.1111\/1471-0528.14967"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,11,20]]},"references-count":0,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2018,1]]}},"alternative-id":["10.1111\/1471-0528.14967"],"URL":"https:\/\/doi.org\/10.1111\/1471-0528.14967","archive":["Portico"],"relation":{},"ISSN":["1470-0328","1471-0528"],"issn-type":[{"value":"1470-0328","type":"print"},{"value":"1471-0528","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,11,20]]},"assertion":[{"value":"2017-10-05","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2017-11-20","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}