{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T12:23:19Z","timestamp":1773922999016,"version":"3.50.1"},"reference-count":0,"publisher":"Georg Thieme Verlag KG","issue":"07","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Amer J Perinatol"],"published-print":{"date-parts":[[2018,6]]},"abstract":"<jats:p>\n            Objective\u2003Twin pregnancies are associated with an increased risk of spontaneous preterm birth. Our objective was to compare the performance of uterocervical angle to cervical length as predictors of spontaneous preterm birth in this population.<\/jats:p><jats:p>\n            Methods\u2003We conducted a retrospective cohort study of twin gestations at a single center from May 2008 to 2016 who received a transvaginal ultrasound for the evaluation of the cervix between 16 0\/7 and 23 0\/7 weeks. The primary outcome was prediction of preterm birth &lt;28 and &lt;32 weeks by uterocervical angle and cervical length.<\/jats:p><jats:p>\n            Results\u2003Among 259 women with twin gestation, the mean gestational age at birth was 34.83\u2009\u00b1\u20093.48 weeks. Receiver operator characteristic curves demonstrated optimal prediction of spontaneous preterm birth prior to 32 weeks at a uterocervical angle &gt;110\u00b0 (80% sensitivity, 82% specificity) [odds ratio (OR), 15.7 (95% confidence interval (CI), 7.2\u201334.4)] versus cervical length &lt;20\u2009mm (53% sensitivity, 85% specificity; p\u2009&lt;\u20090.001, OR, 6.4 [95% CI, 2.3\u201317.8]) and similarly, prior to 28 weeks at a uterocervical angle &gt;114\u00b0 (OR, 24.3 [95% CI, 6.7\u201388.5]) compared with cervical length &lt;20\u2009mm (OR, 11.4 [95% CI, 3.5\u201336.7]).<\/jats:p><jats:p>\n            Conclusion\u2003Uterocervical angles &gt;110\u00b0 performed better than cervical length for the prediction of spontaneous preterm birth in twin gestations.<\/jats:p>","DOI":"10.1055\/s-0037-1608877","type":"journal-article","created":{"date-parts":[[2017,11,30]],"date-time":"2017-11-30T18:42:52Z","timestamp":1512067372000},"page":"648-654","source":"Crossref","is-referenced-by-count":29,"title":["Uterocervical Angle Measurement Improves Prediction of Preterm Birth in Twin Gestation"],"prefix":"10.1055","volume":"35","author":[{"given":"Emily","family":"Tenbrink","sequence":"first","affiliation":[{"name":"Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, Indiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mitchell","family":"Onslow","sequence":"first","affiliation":[{"name":"Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, Indiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Avinash","family":"Patil","sequence":"first","affiliation":[{"name":"Division of Clinical Pharmacology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana"},{"name":"Center for Personalized Obstetric Medicine, Valley Perinatal Services, Phoenix, Arizona"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jordan","family":"Knight","sequence":"additional","affiliation":[{"name":"Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, Indiana"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2017,11,30]]},"container-title":["American Journal of Perinatology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/s-0037-1608877.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2018,5,11]],"date-time":"2018-05-11T18:31:24Z","timestamp":1526063484000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/s-0037-1608877"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,11,30]]},"references-count":0,"journal-issue":{"issue":"07","published-online":{"date-parts":[[2018,5,11]]},"published-print":{"date-parts":[[2018,6]]}},"URL":"https:\/\/doi.org\/10.1055\/s-0037-1608877","relation":{},"ISSN":["0735-1631","1098-8785"],"issn-type":[{"value":"0735-1631","type":"print"},{"value":"1098-8785","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,11,30]]}}}