{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,28]],"date-time":"2026-01-28T20:55:42Z","timestamp":1769633742008,"version":"3.49.0"},"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":[[2018,9]]},"abstract":"<jats:p>\n            Objective\u2003The objective of this study was to investigate the relationship between preterm birth in a prior pregnancy and preterm birth in a twin pregnancy.<\/jats:p><jats:p>\n            Study Design\u2003We performed a secondary analysis of a randomized controlled trial evaluating 17-\u03b1-hydroxyprogesterone caproate in twins. Women were classified as nulliparous, multiparous with a prior term birth, or multiparous with a prior preterm birth. We used logistic regression to examine the odds of spontaneous preterm birth of twins before 35 weeks according to past obstetric history.<\/jats:p><jats:p>\n            Results\u2003Of the 653 women analyzed, 294 were nulliparas, 310 had a prior term birth, and 49 had a prior preterm birth. Prior preterm birth increased the likelihood of spontaneous delivery before 35 weeks (adjusted odds ratio [aOR]: 2.44, 95% confidence interval [CI]: 1.28\u20134.66), whereas prior term delivery decreased these odds (aOR: 0.55, 95% CI: 0.38\u20130.78) in the current twin pregnancy compared with the nulliparous reference group. This translated into a lower odds of composite neonatal morbidity (aOR: 0.38, 95% CI: 0.27\u20130.53) for women with a prior term delivery.<\/jats:p><jats:p>\n            Conclusion\u2003For women carrying twins, a history of preterm birth increases the odds of spontaneous preterm birth, whereas a prior term birth decreases odds of spontaneous preterm birth and neonatal morbidity for the current twin pregnancy. These results offer risk stratification and reassurance for clinicians.<\/jats:p>","DOI":"10.1055\/s-0037-1617758","type":"journal-article","created":{"date-parts":[[2018,1,5]],"date-time":"2018-01-05T23:42:11Z","timestamp":1515195731000},"page":"1023-1030","source":"Crossref","is-referenced-by-count":7,"title":["Obstetric History and Likelihood of Preterm Birth of Twins"],"prefix":"10.1055","volume":"35","author":[{"given":"Sarah","family":"Little","sequence":"first","affiliation":[{"name":"Division of Maternal-Fetal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Julian","family":"Robinson","sequence":"first","affiliation":[{"name":"Division of Maternal-Fetal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hector","family":"Mendez-Figueroa","sequence":"first","affiliation":[{"name":"Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Suneet","family":"Chauhan","sequence":"first","affiliation":[{"name":"Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sarah","family":"Easter","sequence":"additional","affiliation":[{"name":"Division of Maternal-Fetal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2018,1,5]]},"container-title":["American Journal of Perinatology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/s-0037-1617758.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2018,8,31]],"date-time":"2018-08-31T22:40:11Z","timestamp":1535755211000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/s-0037-1617758"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,1,5]]},"references-count":0,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2018,8,31]]},"published-print":{"date-parts":[[2018,9]]}},"URL":"https:\/\/doi.org\/10.1055\/s-0037-1617758","relation":{},"ISSN":["0735-1631","1098-8785"],"issn-type":[{"value":"0735-1631","type":"print"},{"value":"1098-8785","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,1,5]]}}}