{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,28]],"date-time":"2025-10-28T18:42:55Z","timestamp":1761676975297},"reference-count":28,"publisher":"Georg Thieme Verlag KG","issue":"02","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am J Perinatol"],"published-print":{"date-parts":[[2023,1]]},"abstract":"<jats:p>\n            Objective\u2003The aim of the study is to examine the association between the risk of preterm delivery among women with twin pregnancies and their obstetric history.<\/jats:p><jats:p>\n            Study Design\u2003We designed a retrospective cohort study of live twin births in 2008 in the United States that delivered after 240\/7 weeks. Women were categorized into nulliparas, multiparas with prior term delivery, and multiparas with prior preterm delivery. The incidence of preterm birth was compared using Chi-square test and multivariable logistic regression models.<\/jats:p><jats:p>\n            Results\u2003A total of 32,895 nulliparous and 64,701 multiparous women with twin pregnancies were included in the study. Of the multiparous women, 2,505 (4%) had a history of a prior preterm delivery. Multiparous women with prior term birth were more likely to deliver at term (43%) in the index twin pregnancy than nulliparous women (40%) and multiparous women with a prior preterm birth (21%; p\u2009&lt;\u20090.001). Compared with nulliparous women, prior term birth was protective against preterm delivery (adjusted odds ratio [aOR]\u2009=\u20090.67 [95% confidence interval: 0.60\u20130.74] for delivery &lt;28 weeks and aOR\u2009=\u20090.79 [0.71\u20130.77] for delivery &lt;34 weeks).<\/jats:p><jats:p>\n            Conclusion\u2003Among multiparous women with twins, a prior term delivery appeared to be protective against preterm delivery compared with nulliparous women with twins.<\/jats:p><jats:p>\n            Key Points\n          <\/jats:p>","DOI":"10.1055\/s-0041-1727227","type":"journal-article","created":{"date-parts":[[2021,5,4]],"date-time":"2021-05-04T22:45:36Z","timestamp":1620168336000},"page":"206-213","source":"Crossref","is-referenced-by-count":1,"title":["Prior Term Birth Decreases the Risk of Preterm Birth in a Subsequent Twin Gestation"],"prefix":"10.1055","volume":"40","author":[{"given":"Clara","family":"Ward","sequence":"additional","affiliation":[{"name":"Department of Obstetrics, Gynecology, and Reproductive Sciences, McGovern Medical School, University of Texas Health Science Center, Houston, Texas"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sanae","family":"Nakagawa","sequence":"additional","affiliation":[{"name":"Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, California"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yvonne W.","family":"Cheng","sequence":"additional","affiliation":[{"name":"Department of Obstetrics, Gynecology, and Reproductive Sciences, California Pacific Medical Center, San Francisco, California"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2021,5,4]]},"reference":[{"issue":"03","key":"ref1","doi-asserted-by":"crossref","first-page":"516","DOI":"10.1097\/AOG.0b013e318184181a","article-title":"Estimating recurrence of spontaneous preterm delivery","volume":"112","author":"M 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