{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,15]],"date-time":"2026-03-15T04:09:02Z","timestamp":1773547742882,"version":"3.50.1"},"reference-count":22,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T00:00:00Z","timestamp":1627776000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T00:00:00Z","timestamp":1627776000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T00:00:00Z","timestamp":1627776000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T00:00:00Z","timestamp":1627776000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T00:00:00Z","timestamp":1627776000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T00:00:00Z","timestamp":1627776000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T00:00:00Z","timestamp":1627776000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"funder":[{"DOI":"10.13039\/501100000272","name":"National Institute for Health Research","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000272","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","ejog.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["European Journal of Obstetrics &amp; Gynecology and Reproductive Biology"],"published-print":{"date-parts":[[2021,8]]},"DOI":"10.1016\/j.ejogrb.2021.06.021","type":"journal-article","created":{"date-parts":[[2021,6,20]],"date-time":"2021-06-20T11:48:18Z","timestamp":1624189698000},"page":"117-126","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":13,"special_numbering":"C","title":["Development of a core outcome set for effectiveness studies of breech birth at term (Breech-COS): A systematic review on variations in outcome reporting"],"prefix":"10.1016","volume":"263","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3658-8988","authenticated-orcid":false,"given":"Shawn","family":"Walker","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7874-9519","authenticated-orcid":false,"given":"Tisha","family":"Dasgupta","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexandra","family":"Halliday","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anke","family":"Reitter","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.ejogrb.2021.06.021_b0005","first-page":"e151","volume":"124","author":"Impey","year":"2017","journal-title":"BJOG An Int J Obstet Gynaecol"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0010","article-title":"Planned caesarean section for term breech delivery","volume":"2015","author":"Hofmeyr","year":"2015","journal-title":"Cochrane Database System Rev"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0015","article-title":"Expedited versus conservative approaches for vaginal delivery in breech presentation","volume":"2015","author":"Hofmeyr","year":"2015","journal-title":"Cochrane Database System Rev"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0020","doi-asserted-by":"crossref","first-page":"132","DOI":"10.1186\/1745-6215-13-132","article-title":"Developing core outcome sets for clinical trials: Issues to consider","volume":"13","author":"Williamson","year":"2012","journal-title":"Trials"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0025","unstructured":"Higgins, J. et al., Cochrane Handbook for Systematic Reviews of Interventions. Cochrane Collaboration (Cochrane. Available from www.training.cochrane.org\/handbook., 2019)."},{"key":"10.1016\/j.ejogrb.2021.06.021_b0030","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1186\/s13063-017-1978-4","article-title":"The COMET Handbook: Version 1.0","volume":"18","author":"Williamson","year":"2017","journal-title":"Trials"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0035","doi-asserted-by":"crossref","first-page":"1481","DOI":"10.1111\/1471-0528.14694","article-title":"Core outcome sets in women\u2019s and newborn health: a systematic review","volume":"124","author":"Duffy","year":"2017","journal-title":"BJOG An Int J Obstet Gynaecol"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0040","first-page":"1375","article-title":"Planned caesarean section versus planned vaginal birth for breech presentation at term: a randomised multicentre trial","volume":"356","author":"Hannah","year":"2000","journal-title":"Term Breech Trial Collaborative Group Lancet"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0045","unstructured":"Veritas Health Innovation. Covidence systematic review software. (2020)."},{"key":"10.1016\/j.ejogrb.2021.06.021_b0050","doi-asserted-by":"crossref","first-page":"61","DOI":"10.1186\/s12874-017-0341-5","article-title":"Protocol for the development of a salutogenic intrapartum core outcome set (SIPCOS)","volume":"17","author":"Smith","year":"2017","journal-title":"BMC Med Res Method"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0055","unstructured":"NICE Intrapartum care for women with existing medical conditions or obstetric complications and their babies. Evidence review for breech presenting in labour. NICE guideline [NG121] 2019 NICE"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0060","doi-asserted-by":"crossref","first-page":"14979","DOI":"10.1136\/bmjopen-2016-014979","article-title":"Is vaginal breech delivery associated with higher risk for perinatal death and cerebral palsy compared with vaginal cephalic birth? Registry-based cohort study in Norway","volume":"7","author":"Bjellmo","year":"2017","journal-title":"BMJ Open"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0065","doi-asserted-by":"crossref","first-page":"49","DOI":"10.1111\/1471-0528.13524","article-title":"The risks of planned vaginal breech delivery versus planned caesarean section for term breech birth: a meta-analysis including observational studies","volume":"123","author":"Berhan","year":"2016","journal-title":"BJOG An Int J Obstet Gynaecol"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0070","doi-asserted-by":"crossref","first-page":"888","DOI":"10.1111\/aogs.12449","article-title":"Term breech deliveries in the Netherlands: did the increased cesarean rate affect neonatal outcome? A population-based cohort study","volume":"93","author":"Vlemmix","year":"2014","journal-title":"Acta Obstet Gynecol Scand"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0075","doi-asserted-by":"crossref","first-page":"997","DOI":"10.1111\/aogs.12684","article-title":"Neonatal outcome of singleton term breech deliveries in Norway from 1991 to 2011","volume":"94","author":"Vistad","year":"2015","journal-title":"Acta Obstet Gynecol Scand"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0080","doi-asserted-by":"crossref","first-page":"453","DOI":"10.1111\/ajo.12488","article-title":"Outcomes of breech birth by mode of delivery: a population linkage study","volume":"56","author":"Bin","year":"2016","journal-title":"Aust New Zeal J Obstet Gynaecol"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0085","doi-asserted-by":"crossref","first-page":"29","DOI":"10.1016\/j.jgyn.2015.12.001","article-title":"Efficacit\u00e9 et s\u00e9curit\u00e9 du d\u00e9clenchement du travail en cas de pr\u00e9sentation du si\u00e8ge \u00e0 terme","volume":"46","author":"Bleu","year":"2017","journal-title":"J Gynecol Obstet Hum Reprod"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0090","doi-asserted-by":"crossref","first-page":"234","DOI":"10.1177\/1476718X13515425","article-title":"Birth outcomes and academic achievement in childhood: A population record linkage study","volume":"12","author":"Moore","year":"2014","journal-title":"J Early Child Res"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0095","doi-asserted-by":"crossref","first-page":"14","DOI":"10.1186\/1471-2393-9-14","article-title":"Association of Apgar score at five minutes with long-term neurologic disability and cognitive function in a prevalence study of Danish conscripts","volume":"9","author":"Ehrenstein","year":"2009","journal-title":"BMC Pregn Childbirth"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0100","doi-asserted-by":"crossref","first-page":"F114","DOI":"10.1136\/archdischild-2015-308458","article-title":"Five-minute Apgar score as a marker for developmental vulnerability at 5 years of age","volume":"101","author":"Razaz","year":"2016","journal-title":"Arch Dis Child Fetal Neonatal Ed"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0105","first-page":"S27","article-title":"A review of guidelines for the discharge of premature infants: opportunities for improving cost effectiveness - PubMed","volume":"18","author":"Merrit","year":"1998","journal-title":"J Perinatol"},{"key":"10.1016\/j.ejogrb.2021.06.021_b0110","doi-asserted-by":"crossref","first-page":"164","DOI":"10.1111\/j.1523-536X.2006.00145.x","article-title":"Evaluating maternity care: A core set of outcome measures","volume":"34","author":"Devane","year":"2007","journal-title":"Birth"}],"container-title":["European Journal of Obstetrics &amp; Gynecology and Reproductive Biology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0301211521003006?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0301211521003006?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,10,4]],"date-time":"2025-10-04T05:53:49Z","timestamp":1759557229000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0301211521003006"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,8]]},"references-count":22,"alternative-id":["S0301211521003006"],"URL":"https:\/\/doi.org\/10.1016\/j.ejogrb.2021.06.021","relation":{},"ISSN":["0301-2115"],"issn-type":[{"value":"0301-2115","type":"print"}],"subject":[],"published":{"date-parts":[[2021,8]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Development of a core outcome set for effectiveness studies of breech birth at term (Breech-COS): A systematic review on variations in outcome reporting","name":"articletitle","label":"Article Title"},{"value":"European Journal of Obstetrics & Gynecology and Reproductive Biology","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ejogrb.2021.06.021","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2021 Elsevier B.V. All rights reserved.","name":"copyright","label":"Copyright"}]}}