{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,3,29]],"date-time":"2022-03-29T16:04:54Z","timestamp":1648569894783},"reference-count":0,"publisher":"Georg Thieme Verlag KG","issue":"11","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Amer J Perinatol"],"published-print":{"date-parts":[[2017,9]]},"abstract":"<jats:p>\n            Objective\u2003This study aims to estimate the association between maternal race and delivery gestational age among women with twin gestations.<\/jats:p><jats:p>\n            Study Design\u2003Secondary analysis of a prospective, randomized control trial of 17-\u03b1 hydroxyprogesterone caproate versus placebo for preterm birth (PTB) prevention in twin gestations. Non-Hispanic (NH) black and whites were included. Demographic and antenatal characteristics were compared. The primary outcome was delivery gestational age. Secondary outcomes included a composite of major neonatal morbidity. Kaplan\u2013Meier curves estimated survival probabilities for delivery gestational age by race. Cox proportional hazards models estimated hazard ratios (HR) and 95% confidence intervals (CI).<\/jats:p><jats:p>\n            Results\u2003A total of 535 women with twin gestations were included; 150 were NH black. NH blacks delivered earlier than NH whites (33.6\u2009\u00b1\u20094.8 weeks vs. 35.1\u2009\u00b1\u20093.5 weeks, p\u2009&lt;\u20090.001). Differences in delivery gestational age between NH blacks and whites were consistent across gestation. In adjusted analyses, NH black race (HR: 1.24, 95% CI: 1.02\u20131.51), prior PTB (HR: 1.59, 95% CI: 1.15\u20132.19), and cerclage (HR: 3.90, 95% CI: 2.00\u20137.60) were associated with an increased risk of earlier delivery. Major neonatal morbidity was higher for NH blacks compared with NH whites (12.7 vs. 7.0%, p\u2009=\u20090.036).<\/jats:p><jats:p>\n            Conclusion\u2003NH blacks with twin gestations have an increased risk of early delivery and neonatal morbidity compared with NH whites.<\/jats:p>","DOI":"10.1055\/s-0037-1603764","type":"journal-article","created":{"date-parts":[[2017,6,7]],"date-time":"2017-06-07T19:20:46Z","timestamp":1496863246000},"page":"1065-1071","source":"Crossref","is-referenced-by-count":0,"title":["Racial Disparities in Delivery Gestational Age among Twin Pregnancies"],"prefix":"10.1055","volume":"34","author":[{"given":"Catherine","family":"Vladutiu","sequence":"first","affiliation":[{"name":"Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of North Carolina, Chapel Hill, North Carolina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tracy","family":"Manuck","sequence":"first","affiliation":[{"name":"Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of North Carolina, Chapel Hill, North Carolina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jacqueline","family":"Grant","sequence":"additional","affiliation":[{"name":"Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of North Carolina, Chapel Hill, North Carolina"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2017,6,7]]},"container-title":["American Journal of Perinatology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/s-0037-1603764.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2017,12,19]],"date-time":"2017-12-19T05:36:44Z","timestamp":1513661804000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/s-0037-1603764"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,6,7]]},"references-count":0,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2017,8,31]]},"published-print":{"date-parts":[[2017,9]]}},"URL":"https:\/\/doi.org\/10.1055\/s-0037-1603764","relation":{},"ISSN":["0735-1631","1098-8785"],"issn-type":[{"value":"0735-1631","type":"print"},{"value":"1098-8785","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,6,7]]}}}