{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T21:32:52Z","timestamp":1790717572637,"version":"4.1.0"},"reference-count":31,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2026,2,15]],"date-time":"2026-02-15T00:00:00Z","timestamp":1771113600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,2,15]],"date-time":"2026-02-15T00:00:00Z","timestamp":1771113600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100001540","name":"CHEST Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100001540","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[2026,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Our objective was to develop a Core Outcome Set for Research on Critically Ill Obstetric Patients (COSCO) through international consensus, with the aim of improving consistency, comparability, and clinical relevance across studies involving this population.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and Methods<\/jats:title>\n                    <jats:p>This international, multi\u2010method study was conducted between February 16, 2023, and January 18, 2024. The process included a two\u2010round online Delphi survey, three small group discussions, and a final consensus meeting. Participants comprised health service users (HSUs) with lived experience of critical illness during pregnancy and healthcare professionals from diverse specialties and geographic regions.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Sixty\u2010eight participants (11 HSUs and 57 healthcare professionals) from 16 countries scored 23 candidate items identified through a systematic review and qualitative interviews. Through consensus, 10 core outcomes and 7 reporting checklist items were selected for inclusion in all research on critical illness in obstetrics. Core outcomes included maternal all\u2010cause mortality; cardiac arrest and the need for cardiopulmonary resuscitation (not resulting in death); severe (maternal) organ dysfunction; length of stay in the intensive care unit (ICU) and total hospital stay; readmission to hospital or ICU or repeated hospital\/emergency department visits following discharge from ICU; presence of a new medical condition at the time of discharge from hospital, which was not present at the time of admission to the hospital; permanent infertility as a consequence of critical illness or intervention; perinatal loss; severe neonatal morbidity requiring prolonged neonatal ICU admission; and gestational age\/preterm birth. Four additional noncore outcomes were identified as important but may be challenging to measure consistently; these should be reported when relevant and feasible.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>COSCO provides a standardized, consensus\u2010based framework for outcome reporting in research on critically ill obstetric patients. Its adoption will strengthen methodological rigor, reduce reporting heterogeneity, enhance comparability across studies, and support evidence\u2010based, patient\u2010centered guideline development.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/aogs.70161","type":"journal-article","created":{"date-parts":[[2026,2,16]],"date-time":"2026-02-16T04:50:17Z","timestamp":1771217417000},"page":"724-733","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A core outcome set and reporting checklist for research on critically ill obstetric patients: An international consensus study"],"prefix":"10.1111","volume":"105","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-7026-0479","authenticated-orcid":false,"given":"Tiffany","family":"Yeretsian","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology McMaster University  Hamilton Ontario Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julien","family":"Viau\u2010Lapointe","sequence":"additional","affiliation":[{"name":"Department of Medicine, H\u00f4pital Maisonneuve\u2010Rosemont Universit\u00e9 de Montr\u00e9al  Montreal Quebec Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5287-0273","authenticated-orcid":false,"given":"Rizwana","family":"Ashraf","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology McMaster University  Hamilton Ontario Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4049-2017","authenticated-orcid":false,"given":"Rohan","family":"D'Souza","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology McMaster University  Hamilton Ontario Canada"},{"name":"Department of Health Research Methods, Evidence and Impact McMaster University  Hamilton Ontario Canada"},{"name":"Department of Obstetrics &amp; Gynecology, Mount Sinai Hospital University of Toronto  Toronto Ontario Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen E.","family":"Lapinsky","sequence":"additional","affiliation":[{"name":"Interdepartmental Division of Critical Care Medicine University of Toronto  Toronto Ontario Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,2,15]]},"reference":[{"key":"e_1_2_14_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00134-010-1951-0"},{"key":"e_1_2_14_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ccc.2004.05.001"},{"key":"e_1_2_14_4_1","doi-asserted-by":"publisher","DOI":"10.1097\/00001503-200306000-00004"},{"key":"e_1_2_14_5_1","doi-asserted-by":"publisher","DOI":"10.1097\/01.CCM.0000183159.31378.6A"},{"key":"e_1_2_14_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/ijgo.12828"},{"key":"e_1_2_14_7_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmjopen-2022-060972"},{"key":"e_1_2_14_8_1","doi-asserted-by":"publisher","DOI":"10.1053\/j.semperi.2014.07.002"},{"key":"e_1_2_14_9_1","doi-asserted-by":"publisher","DOI":"10.1186\/cc13895"},{"key":"e_1_2_14_10_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmjopen-2014-006676"},{"key":"e_1_2_14_11_1","doi-asserted-by":"publisher","DOI":"10.1177\/1753495X241302848"},{"key":"e_1_2_14_12_1","doi-asserted-by":"publisher","DOI":"10.1177\/1753495X241290681"},{"key":"e_1_2_14_13_1","unstructured":"Core Outcome Measures for Effectiveness Trials (COMET).2016. 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