{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,16]],"date-time":"2026-05-16T15:44:56Z","timestamp":1778946296278,"version":"3.51.4"},"reference-count":16,"publisher":"Elsevier BV","issue":"6","license":[{"start":{"date-parts":[[2016,6,1]],"date-time":"2016-06-01T00:00:00Z","timestamp":1464739200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2016,6,1]],"date-time":"2016-06-01T00:00:00Z","timestamp":1464739200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["ajog.org","clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["American Journal of Obstetrics and Gynecology"],"published-print":{"date-parts":[[2016,6]]},"DOI":"10.1016\/j.ajog.2015.12.023","type":"journal-article","created":{"date-parts":[[2015,12,22]],"date-time":"2015-12-22T02:30:14Z","timestamp":1450751414000},"page":"735.e1-735.e8","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":32,"title":["The relationship between variations in cesarean delivery and regional health care use in the United States"],"prefix":"10.1016","volume":"214","author":[{"given":"Sarah E.","family":"Little","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"E. John","family":"Orav","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Julian N.","family":"Robinson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aaron B.","family":"Caughey","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ashish K.","family":"Jha","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.ajog.2015.12.023_bib1","doi-asserted-by":"crossref","first-page":"308","DOI":"10.1053\/j.semperi.2012.04.012","article-title":"Epidemiology of cesarean delivery: the scope of the problem","volume":"36","author":"Boyle","year":"2012","journal-title":"Semin Perinatol"},{"key":"10.1016\/j.ajog.2015.12.023_bib2","doi-asserted-by":"crossref","first-page":"179","DOI":"10.1016\/j.clp.2011.03.007","article-title":"Recent trends and patterns in cesarean and vaginal birth after cesarean (VBAC) deliveries in\u00a0the United States","volume":"38","author":"MacDorman","year":"2011","journal-title":"Clin Perinatol"},{"key":"10.1016\/j.ajog.2015.12.023_bib3","doi-asserted-by":"crossref","first-page":"w355","DOI":"10.1377\/hlthaff.25.w355","article-title":"Geographic variation in the appropriate use of\u00a0cesarean delivery","volume":"25","author":"Baicker","year":"2006","journal-title":"Health Aff (Millwood)"},{"key":"10.1016\/j.ajog.2015.12.023_bib4","doi-asserted-by":"crossref","first-page":"527","DOI":"10.1377\/hlthaff.2012.1030","article-title":"Cesarean delivery rates vary tenfold among US hospitals; reducing variation may address quality and cost issues","volume":"32","author":"Kozhimannil","year":"2013","journal-title":"Health Aff (Millwood)"},{"key":"10.1016\/j.ajog.2015.12.023_bib5","doi-asserted-by":"crossref","first-page":"1181","DOI":"10.1097\/AOG.0b013e3182704880","article-title":"Preventing the first cesarean delivery: summary of a joint Eunice Kennedy Shriver National Institute of Child Health and Human Development, Society for Maternal-Fetal Medicine, and American College of Obstetricians and Gynecologists Workshop","volume":"120","author":"Spong","year":"2012","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.ajog.2015.12.023_bib6","doi-asserted-by":"crossref","first-page":"179","DOI":"10.1016\/j.ajog.2014.01.026","article-title":"Safe prevention of the primary cesarean delivery","volume":"210","author":"Caughey","year":"2014","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2015.12.023_bib7","doi-asserted-by":"crossref","first-page":"e57817.13","DOI":"10.1371\/journal.pone.0057817","article-title":"Hospital differences in cesarean deliveries in Massachusetts (US) 2004-2006: the case against case-mix artifact","volume":"8","author":"Caceres","year":"2013","journal-title":"PLoS One"},{"key":"10.1016\/j.ajog.2015.12.023_bib8","doi-asserted-by":"crossref","first-page":"147.e1","DOI":"10.1016\/j.ajog.2014.03.017","article-title":"Can differences in obstetric outcomes be explained by differences in the care provided? The MFMU Network APEX study","volume":"211","author":"Grobman","year":"2014","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2015.12.023_bib9","doi-asserted-by":"crossref","first-page":"71","DOI":"10.1097\/ACM.0000000000000048","article-title":"Forceps delivery volumes in teaching and nonteaching hospitals: are volumes sufficient for physicians to acquire and maintain competence?","volume":"89","author":"Kyser","year":"2014","journal-title":"Acad Med"},{"key":"10.1016\/j.ajog.2015.12.023_bib10","doi-asserted-by":"crossref","first-page":"1220","DOI":"10.3109\/14767058.2013.860440","article-title":"Clinicians\u2019 practice environment is associated with a higher likelihood of recommending cesarean deliveries","volume":"27","author":"Cheng","year":"2014","journal-title":"J\u00a0Matern Fetal Neonatal Med"},{"key":"10.1016\/j.ajog.2015.12.023_bib11","doi-asserted-by":"crossref","first-page":"1724","DOI":"10.1056\/NEJMsa1203980","article-title":"Comparing local and regional variation in health care spending","volume":"367","author":"Zhang","year":"2012","journal-title":"N\u00a0Engl J Med"},{"key":"10.1016\/j.ajog.2015.12.023_bib12","doi-asserted-by":"crossref","first-page":"1644","DOI":"10.1016\/j.ajog.2006.03.013","article-title":"Is there a useful cesarean birth measure? Assessment of the nulliparous term singleton vertex cesarean birth rate as a tool for obstetric quality improvement","volume":"194","author":"Main","year":"2006","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2015.12.023_bib13","doi-asserted-by":"crossref","first-page":"207","DOI":"10.1097\/01.ogx.0000256800.21193.ce","article-title":"Measuring the quality of inpatient obstetrical care","volume":"62","author":"Bailit","year":"2007","journal-title":"Obstet Gynecol Surv"},{"key":"10.1016\/j.ajog.2015.12.023_bib14","first-page":"1","article-title":"Trends in low-risk cesarean delivery in the United States, 1990-2013","volume":"63","author":"Osterman","year":"2014","journal-title":"Natl Vital Stat Rep"},{"key":"10.1016\/j.ajog.2015.12.023_bib15","doi-asserted-by":"crossref","first-page":"1194","DOI":"10.1097\/AOG.0b013e31826fc13d","article-title":"Creating a public agenda for maternity safety and quality in cesarean delivery","volume":"120","author":"Main","year":"2012","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.ajog.2015.12.023_bib16","doi-asserted-by":"crossref","first-page":"240","DOI":"10.1370\/afm.535","article-title":"The US medical liability system: Evidence for legislative reform","volume":"4","author":"Guirguis-Blake","year":"2006","journal-title":"Ann Fam Med"}],"container-title":["American Journal of Obstetrics and Gynecology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0002937815025715?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0002937815025715?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T11:07:50Z","timestamp":1757588870000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0002937815025715"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,6]]},"references-count":16,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2016,6]]}},"alternative-id":["S0002937815025715"],"URL":"https:\/\/doi.org\/10.1016\/j.ajog.2015.12.023","relation":{},"ISSN":["0002-9378"],"issn-type":[{"value":"0002-9378","type":"print"}],"subject":[],"published":{"date-parts":[[2016,6]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"The relationship between variations in cesarean delivery and regional health care use in the United States","name":"articletitle","label":"Article Title"},{"value":"American Journal of Obstetrics and Gynecology","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ajog.2015.12.023","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2016 Elsevier Inc. All rights reserved.","name":"copyright","label":"Copyright"}]}}