{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T16:30:18Z","timestamp":1786984218211,"version":"build-2736575974"},"reference-count":32,"publisher":"Elsevier BV","issue":"6","license":[{"start":{"date-parts":[[2021,11,1]],"date-time":"2021-11-01T00:00:00Z","timestamp":1635724800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2021,11,1]],"date-time":"2021-11-01T00:00:00Z","timestamp":1635724800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2021,11,1]],"date-time":"2021-11-01T00:00:00Z","timestamp":1635724800000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2021,11,1]],"date-time":"2021-11-01T00:00:00Z","timestamp":1635724800000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2021,11,1]],"date-time":"2021-11-01T00:00:00Z","timestamp":1635724800000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2021,11,1]],"date-time":"2021-11-01T00:00:00Z","timestamp":1635724800000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2021,11,1]],"date-time":"2021-11-01T00:00:00Z","timestamp":1635724800000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"funder":[{"DOI":"10.13039\/100009633","name":"Eunice Kennedy Shriver National Institute of Child Health and Human Development","doi-asserted-by":"publisher","award":["R01 HD098178"],"award-info":[{"award-number":["R01 HD098178"]}],"id":[{"id":"10.13039\/100009633","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["ajogmfm.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["American Journal of Obstetrics & Gynecology MFM"],"published-print":{"date-parts":[[2021,11]]},"DOI":"10.1016\/j.ajogmf.2021.100461","type":"journal-article","created":{"date-parts":[[2021,8,16]],"date-time":"2021-08-16T01:54:14Z","timestamp":1629078854000},"page":"100461","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":13,"title":["Antepartum hospital use and delivery outcomes in California"],"prefix":"10.1016","volume":"3","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4342-4279","authenticated-orcid":false,"given":"Denise","family":"Monti","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9330-8009","authenticated-orcid":false,"given":"Chen Y.","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6274-0544","authenticated-orcid":false,"given":"Lynn M.","family":"Yee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joe","family":"Feinglass","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1016\/j.ajogmf.2021.100461_bib0001","doi-asserted-by":"crossref","first-page":"1029","DOI":"10.1097\/AOG.0b013e31826d60c5","article-title":"Severe maternal morbidity among delivery and postpartum hospitalizations in the United States","volume":"120","author":"Callaghan","year":"2012","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0002","doi-asserted-by":"crossref","first-page":"E304","DOI":"10.9778\/cmajo.20190154","article-title":"Emergency department use by pregnant women in Ontario: a retrospective population-based cohort study","volume":"8","author":"Varner","year":"2020","journal-title":"CMAJ Open"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0003","doi-asserted-by":"crossref","first-page":"940","DOI":"10.1111\/acem.13215","article-title":"Association between maternal comorbidities and emergency department use among a national sample of commercially insured pregnant women","volume":"24","author":"Cunningham","year":"2017","journal-title":"Acad Emerg Med"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0004","doi-asserted-by":"crossref","first-page":"265","DOI":"10.1007\/s10995-018-2651-6","article-title":"Emergency care utilization among pregnant Medicaid recipients in North Carolina: an analysis using linked claims and birth records","volume":"23","author":"Vladutiu","year":"2019","journal-title":"Matern Child Health J"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0005","doi-asserted-by":"crossref","first-page":"1026","DOI":"10.1089\/jwh.2017.6543","article-title":"Antenatal hospital utilization among women at risk for disability","volume":"27","author":"Clements","year":"2018","journal-title":"J Womens Health (Larchmt)"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0006","first-page":"895","article-title":"The profile of women attending the National Maternity Hospital emergency out of hours service\u2014two decades on. A retrospective review","volume":"112","author":"O'Brien","year":"2019","journal-title":"Ir Med J"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0007","doi-asserted-by":"crossref","first-page":"109","DOI":"10.14740\/jocmr2013w","article-title":"Utilization of emergency service of obstetrics and gynecology: a cross-sectional analysis of a training hospital","volume":"7","author":"Aksoy","year":"2015","journal-title":"J Clin Med Res"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0008","doi-asserted-by":"crossref","first-page":"1131","DOI":"10.1007\/s00404-018-4684-x","article-title":"Emergency department use during pregnancy: a prospective observational study in a single center institution","volume":"297","author":"Thangarajah","year":"2018","journal-title":"Arch Gynecol Obstet"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0009","unstructured":"California Health and Human Services Open Data Portal. Patient discharge and emergency department data. Available at:https:\/\/data.chhs.ca.gov\/. Accessed August 1, 2020."},{"key":"10.1016\/j.ajogmf.2021.100461_bib0010","unstructured":"Centers for Disease Control and Prevention. How does CDC identify severe maternal morbidity? 2019. Available at:https:\/\/www.cdc.gov\/reproductivehealth\/maternalinfanthealth\/smm\/severe-morbidity-ICD.htm. Accessed October 18, 2020."},{"key":"10.1016\/j.ajogmf.2021.100461_bib0011","doi-asserted-by":"crossref","first-page":"1277","DOI":"10.1001\/jama.2009.1356","article-title":"Evaluating obstetrical residency programs using patient outcomes","volume":"302","author":"Asch","year":"2009","journal-title":"JAMA"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0012","first-page":"623","article-title":"Using electronic health record and administrative data to analyze maternal and neonatal delivery complications","volume":"46","author":"Huennekens","year":"2020","journal-title":"Jt Comm J Qual Patient Saf"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0013","doi-asserted-by":"crossref","first-page":"440","DOI":"10.1097\/AOG.0000000000004022","article-title":"An expanded obstetric comorbidity scoring system for predicting severe maternal morbidity","volume":"136","author":"Leonard","year":"2020","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0014","doi-asserted-by":"crossref","first-page":"1690","DOI":"10.1001\/jama.280.19.1690","article-title":"What's the relative risk? A method of correcting the odds ratio in cohort studies of common outcomes","volume":"280","author":"Zhang","year":"1998","journal-title":"JAMA"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0015","doi-asserted-by":"crossref","first-page":"702","DOI":"10.1093\/aje\/kwh090","article-title":"A modified poisson regression approach to prospective studies with binary data","volume":"159","author":"Zou","year":"2004","journal-title":"Am J Epidemiol"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0016","doi-asserted-by":"crossref","first-page":"g2301","DOI":"10.1136\/bmj.g2301","article-title":"Chronic hypertension and pregnancy outcomes: systematic review and meta-analysis","volume":"348","author":"Bramham","year":"2014","journal-title":"BMJ"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0017","doi-asserted-by":"crossref","first-page":"E21","DOI":"10.5888\/pcd15.170397","article-title":"Obstetric outcomes and delivery-related health care utilization and costs among pregnant women with multiple chronic conditions","volume":"15","author":"Admon","year":"2018","journal-title":"Prev Chronic Dis"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0018","doi-asserted-by":"crossref","first-page":"181.e1","DOI":"10.1016\/j.ajog.2016.10.013","article-title":"Nonurgent and urgent emergency department use during pregnancy: an observational study","volume":"216","author":"Kilfoyle","year":"2017","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0019","doi-asserted-by":"crossref","first-page":"835","DOI":"10.1016\/j.annemergmed.2017.06.020","article-title":"Emergency department use in the perinatal period: an opportunity for early intervention","volume":"70","author":"Malik","year":"2017","journal-title":"Ann Emerg Med"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0020","doi-asserted-by":"crossref","first-page":"387","DOI":"10.1097\/GRF.0000000000000349","article-title":"Reducing disparities in severe maternal morbidity and mortality","volume":"61","author":"Howell","year":"2018","journal-title":"Clin Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0021","doi-asserted-by":"crossref","first-page":"435.e1","DOI":"10.1016\/j.ajog.2013.11.039","article-title":"Racial and ethnic disparities in severe maternal morbidity: a multistate analysis, 2008\u20132010","volume":"210","author":"Creanga","year":"2014","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0022","doi-asserted-by":"crossref","first-page":"779","DOI":"10.1016\/j.clp.2020.08.009","article-title":"Advances in Maternal Fetal Medicine: perinatal quality collaboratives working together to improve maternal outcomes","volume":"47","author":"Lee King","year":"2020","journal-title":"Clin Perinatol"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0023","unstructured":"The Joint Commission. Perinatal care (PC) measures. 2020. Available at: https:\/\/www.npic.org\/wp-content\/uploads\/2020\/09\/PC_Measures_Updates2020_Slides.pdf. Accessed October 19, 2020."},{"key":"10.1016\/j.ajogmf.2021.100461_bib0024","doi-asserted-by":"crossref","DOI":"10.1016\/j.annemergmed.2016.04.015","article-title":"The effectiveness of emergency department visit reduction programs: a systematic review","volume":"68","author":"Raven","year":"2016","journal-title":"Ann Emerg Med"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0025","doi-asserted-by":"crossref","DOI":"10.1001\/jamanetworkopen.2018.3728","article-title":"Policies that limit emergency department visits and reimbursements undermine the emergency care system: instead, let's optimize it","volume":"1","author":"Raven","year":"2018","journal-title":"JAMA Netw Open"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0026","doi-asserted-by":"crossref","first-page":"1145","DOI":"10.1001\/jama.2013.1948","article-title":"Comparison of presenting complaint vs discharge diagnosis for identifying \u201cnonemergency\u201d emergency department visits","volume":"309","author":"Raven","year":"2013","journal-title":"JAMA"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0027","doi-asserted-by":"crossref","first-page":"587","DOI":"10.1542\/peds.2012-1999","article-title":"Levels of neonatal care","volume":"130","year":"2012","journal-title":"Pediatrics"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0028","doi-asserted-by":"crossref","first-page":"1027","DOI":"10.1097\/AOG.0000000000003820","article-title":"Right-sizing prenatal care to meet patients\u2019 needs and improve maternity care value","volume":"135","author":"Peahl","year":"2020","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0029","doi-asserted-by":"crossref","first-page":"e41","DOI":"10.1097\/AOG.0000000000003383","article-title":"Levels of maternal care: Obstetric Care Consensus No, 9","volume":"134","year":"2019","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0030","doi-asserted-by":"crossref","first-page":"931","DOI":"10.1007\/s10995-009-0542-6","article-title":"Prenatal care utilization in Mississippi: racial disparities and implications for unfavorable birth outcomes","volume":"15","author":"Cox","year":"2011","journal-title":"Matern Child Health J"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0031","doi-asserted-by":"crossref","first-page":"268","DOI":"10.1186\/1471-2458-7-268","article-title":"Under-attending free antenatal care is associated with adverse pregnancy outcomes","volume":"7","author":"Raatikainen","year":"2007","journal-title":"BMC Public Health"},{"key":"10.1016\/j.ajogmf.2021.100461_bib0032","unstructured":"Hostetter M, Klein S, Zephyrin L. Maternity care, interrupted. 2020. Available at: https:\/\/www.commonwealthfund.org\/publications\/2020\/may\/maternity-care-interrupted. Accessed October 19, 2020."}],"container-title":["American Journal of Obstetrics & Gynecology MFM"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S2589933321001567?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S2589933321001567?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,11,11]],"date-time":"2025-11-11T23:48:04Z","timestamp":1762904884000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S2589933321001567"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,11]]},"references-count":32,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2021,11]]}},"alternative-id":["S2589933321001567"],"URL":"https:\/\/doi.org\/10.1016\/j.ajogmf.2021.100461","relation":{},"ISSN":["2589-9333"],"issn-type":[{"value":"2589-9333","type":"print"}],"subject":[],"published":{"date-parts":[[2021,11]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Antepartum hospital use and delivery outcomes in California","name":"articletitle","label":"Article Title"},{"value":"American Journal of Obstetrics & Gynecology MFM","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ajogmf.2021.100461","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2021 Elsevier Inc. All rights reserved.","name":"copyright","label":"Copyright"}],"article-number":"100461"}}