{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,16]],"date-time":"2025-09-16T16:47:33Z","timestamp":1758041253652,"version":"3.44.0"},"reference-count":24,"publisher":"Elsevier BV","issue":"2","license":[{"start":{"date-parts":[[2016,8,1]],"date-time":"2016-08-01T00:00:00Z","timestamp":1470009600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2016,8,1]],"date-time":"2016-08-01T00:00:00Z","timestamp":1470009600000},"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":[[2016,8]]},"DOI":"10.1016\/j.ajog.2016.02.029","type":"journal-article","created":{"date-parts":[[2016,2,17]],"date-time":"2016-02-17T13:03:39Z","timestamp":1455714219000},"page":"229.e1-229.e7","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":1,"title":["Assessment of a cervicometer compared to transvaginal ultrasound in identifying women with a short cervical length: a multicenter study"],"prefix":"10.1016","volume":"215","author":[{"given":"Jason K.","family":"Baxter","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C. David","family":"Adair","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael J.","family":"Paidas","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Matthew K.","family":"Hoffman","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Frances J.","family":"Kivel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Deb","family":"Cebrik","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael G.","family":"Ross","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.ajog.2016.02.029_bib1","doi-asserted-by":"crossref","first-page":"643","DOI":"10.1067\/mob.2001.116752","article-title":"The Preterm Prediction Study: toward a multiple-marker test for spontaneous preterm birth","volume":"185","author":"Goldenberg","year":"2001","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib2","doi-asserted-by":"crossref","first-page":"567","DOI":"10.1056\/NEJM199602293340904","article-title":"The length of the cervix and the risk of spontaneous premature delivery. National Institute of Child Health and Human Development Maternal Fetal Medicine Unit Network","volume":"334","author":"Iams","year":"1996","journal-title":"N\u00a0Engl J Med"},{"key":"10.1016\/j.ajog.2016.02.029_bib3","doi-asserted-by":"crossref","first-page":"312","DOI":"10.1046\/j.1469-0705.1998.12050312.x","article-title":"Cervical length at 23 weeks of gestation: prediction of spontaneous preterm delivery","volume":"12","author":"Heath","year":"1998","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib4","doi-asserted-by":"crossref","first-page":"1458","DOI":"10.1067\/mob.2000.106851","article-title":"Patients with an ultrasonographic cervical length < or\u00a0=15 mm have nearly a 50% risk of early spontaneous preterm delivery","volume":"182","author":"Hassan","year":"2000","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib5","doi-asserted-by":"crossref","first-page":"124.e1","DOI":"10.1016\/j.ajog.2011.12.003","article-title":"Vaginal progesterone in women with an\u00a0asymptomatic sonographic short cervix in the midtrimester decreases preterm delivery and neonatal morbidity: a systematic review and metaanalysis of individual patient data","volume":"206","author":"Romero","year":"2012","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib6","doi-asserted-by":"crossref","first-page":"462","DOI":"10.1056\/NEJMoa067815","article-title":"Progesterone and the risk of preterm birth among women with a short cervix","volume":"357","author":"Fonseca","year":"2007","journal-title":"N\u00a0Engl J Med"},{"key":"10.1016\/j.ajog.2016.02.029_bib7","doi-asserted-by":"crossref","first-page":"18","DOI":"10.1002\/uog.9017","article-title":"Vaginal progesterone reduces the rate of preterm birth in women with a sonographic short cervix: a multicenter, randomized, double-blind, placebo-controlled trial","volume":"38","author":"Hassan","year":"2011","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib8","doi-asserted-by":"crossref","first-page":"467","DOI":"10.1007\/s40273-014-0133-2","article-title":"Cost and cost effectiveness of vaginal progesterone gel in reducing preterm birth: an economic analysis of the\u00a0PREGNANT trial","volume":"32","author":"Pizzi","year":"2014","journal-title":"Pharmacoeconomics"},{"key":"10.1016\/j.ajog.2016.02.029_bib9","doi-asserted-by":"crossref","first-page":"548","DOI":"10.1016\/j.ajog.2009.12.005","article-title":"Universal cervical length screening and treatment with vaginal progesterone to prevent preterm birth: a decision and economic analysis","volume":"202","author":"Cahill","year":"2010","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib10","doi-asserted-by":"crossref","first-page":"554","DOI":"10.1016\/j.ajog.2015.06.020","article-title":"Cost-effectiveness of transvaginal ultrasound cervical length screening in singletons without a prior preterm birth: an update","volume":"213","author":"Werner","year":"2015","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib11","doi-asserted-by":"crossref","first-page":"235","DOI":"10.1016\/j.ajog.2015.09.102","article-title":"Vaginal progesterone to prevent preterm birth in pregnant women with a sonographic short cervix: clinical and public health implications","volume":"214","author":"Conde-Agudelo","year":"2016","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib12","doi-asserted-by":"crossref","first-page":"101","DOI":"10.1016\/j.ajog.2011.12.008","article-title":"Vaginal progesterone for asymptomatic cervical shortening and the case for universal screening of cervical length","volume":"206","author":"Combs","year":"2012","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib13","doi-asserted-by":"crossref","first-page":"964","DOI":"10.1097\/AOG.0b013e3182723b1b","article-title":"Prediction and prevention of preterm birth. Practice bulletin no. 130","volume":"120","year":"2012","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib14","doi-asserted-by":"crossref","first-page":"376","DOI":"10.1016\/j.ajog.2012.03.010","article-title":"Progesterone and preterm birth prevention: translating clinical trials data into clinical practice","volume":"206","year":"2012","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib15","first-page":"385","article-title":"Objective cervical portio length measurements: consistency and efficacy of screening for a short cervix","volume":"52","author":"Ross","year":"2007","journal-title":"J\u00a0Reprod Med"},{"key":"10.1016\/j.ajog.2016.02.029_bib16","doi-asserted-by":"crossref","first-page":"378","DOI":"10.3109\/14767058.2012.712564","article-title":"CerviLenz is an effective tool for screening cervical-length in comparison to transvaginal ultrasound","volume":"26","author":"M\u00f6ller","year":"2013","journal-title":"J\u00a0Matern Fetal Neonatal Med"},{"key":"10.1016\/j.ajog.2016.02.029_bib17","first-page":"327","article-title":"Effectiveness of a new cervicometer in evaluating the risk of preterm delivery","volume":"65","author":"Porcaro","year":"2013","journal-title":"Minerva Ginecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib18","unstructured":"Perinatal Quality Foundation. Cervical Length Education and Review (CLEAR). Available at: https:\/\/clear.perinatalquality.org\/. Accessed January 10, 2011."},{"key":"10.1016\/j.ajog.2016.02.029_bib19","doi-asserted-by":"crossref","first-page":"404","DOI":"10.1093\/biomet\/26.4.404","article-title":"The use of confidence or fiducial limits illustrated in the case of the binomial","volume":"26","author":"Clopper","year":"1934","journal-title":"Biometrika"},{"key":"10.1016\/j.ajog.2016.02.029_bib20","doi-asserted-by":"crossref","first-page":"520","DOI":"10.1097\/AOG.0000000000000428","article-title":"A\u00a0universal transvaginal cervical length screening program for preterm birth\u00a0prevention","volume":"124","author":"Orzechowski","year":"2014","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib21","first-page":"S70","article-title":"for the Eunice Kennedy Shriver NICHD MFMU Network. Cervical length\u00a0distribution for nulliparous women at 16\u00a0to\u00a022 weeks","volume":"212","author":"Constanine","year":"2015","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib22","doi-asserted-by":"crossref","first-page":"e37","DOI":"10.1016\/j.ajog.2008.11.026","article-title":"Blinded comparison of cervical portio length measurements by digital examination vs CerviLenz","volume":"200","author":"Burwick","year":"2009","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib23","doi-asserted-by":"crossref","first-page":"145","DOI":"10.1016\/j.ajog.2014.07.003","article-title":"Precocious cervical ripening as a screening target to predict spontaneous preterm delivery among asymptomatic singleton pregnancies: a systematic review","volume":"212","author":"Li","year":"2015","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2016.02.029_bib24","doi-asserted-by":"crossref","first-page":"506","DOI":"10.1016\/j.ajog.2014.05.044","article-title":"Clinical significance of amniotic fluid sludge in twin pregnancies with a short cervical length","volume":"211","author":"Boyer","year":"2014","journal-title":"Am J Obstet Gynecol"}],"container-title":["American Journal of Obstetrics and Gynecology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0002937816003173?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0002937816003173?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T11:11:24Z","timestamp":1757589084000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0002937816003173"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,8]]},"references-count":24,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2016,8]]}},"alternative-id":["S0002937816003173"],"URL":"https:\/\/doi.org\/10.1016\/j.ajog.2016.02.029","relation":{},"ISSN":["0002-9378"],"issn-type":[{"type":"print","value":"0002-9378"}],"subject":[],"published":{"date-parts":[[2016,8]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Assessment of a cervicometer compared to transvaginal ultrasound in identifying women with a short cervical length: a multicenter study","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.2016.02.029","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"}]}}