{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T21:00:47Z","timestamp":1791925247087,"version":"4.3.4"},"reference-count":25,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2014,6,2]],"date-time":"2014-06-02T00:00:00Z","timestamp":1401667200000},"content-version":"vor","delay-in-days":1,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Premature Baby Foundation of Taiwan"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Obstet and Gynaecol"],"published-print":{"date-parts":[[2014,6]]},"abstract":"Abstract<\/jats:title>Aim<\/jats:title>The aim of this study was to analyze the trends and risk factors of preterm birth from all the women who delivered during 2001\u20132009 in T<\/jats:styled-content>aiwan.<\/jats:p><\/jats:sec>Material and Methods<\/jats:title>We analyzed the preterm birth rates, the proportions of obstetric antecedents and risk factors in the population of pregnant women and neonatal A<\/jats:styled-content>pgar scores according to the N<\/jats:styled-content>ational M<\/jats:styled-content>edical B<\/jats:styled-content>irth R<\/jats:styled-content>egister database from 2001 to 2009. Adjusted odds ratios (OR<\/jats:styled-content>) with 95% confidence intervals for risk factors of preterm birth were assessed using multivariable logistic regression models. The obstetric antecedents of preterm birth for singletons were stratified by spontaneous preterm labor and indicated preterm delivery (labor induction or elective cesarean delivery).<\/jats:p><\/jats:sec>Results<\/jats:title>The preterm birth rate was 8.56% with the majority (89.76%) delivered between 32 and 37 weeks of gestation. A 0.07% annual increase (P<\/jats:italic>\u2009<\u20090.001) in preterm delivery was observed. The greatest risk factors were multiple pregnancies (OR<\/jats:styled-content>\u2009>\u200920), followed by medical complications (OR<\/jats:styled-content>\u2009>\u20092.8), congenital malformations (OR<\/jats:styled-content>\u2009>\u20092), teen pregnancies (OR<\/jats:styled-content>\u2009>\u20091), and advanced maternal age (OR<\/jats:styled-content>\u2009>\u20091). Specifically, singleton preterm births comprised 57.3% spontaneous labor and 42.7% indicated delivery. There was a 0.5% annual increase (P<\/jats:italic>\u2009<\u20090.001) in indicated delivery. Incidence of neonates with poor A<\/jats:styled-content>pgar scores (<7) was significantly different between those with and without medical complications (P<\/jats:italic>\u2009<\u20090.001).<\/jats:p><\/jats:sec>Conclusions<\/jats:title>The preterm birth rate increased significantly from 2001 to 2009 and multiple pregnancies were the most important contributing factor. Most of the singleton preterm births resulted from spontaneous labor, but the proportion of indicated deliveries increased.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jog.12400","type":"journal-article","created":{"date-parts":[[2014,6,3]],"date-time":"2014-06-03T03:14:07Z","timestamp":1401765247000},"page":"1547-1554","source":"Crossref","is-referenced-by-count":18,"title":["Preterm birth trend in T<\/scp>aiwan from 2001 to 2009"],"prefix":"10.1111","volume":"40","author":[{"given":"Liang\u2010Kai","family":"Wang","sequence":"first","affiliation":[{"name":"Division of High Risk Pregnancy Mackay Memorial Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wan\u2010Ming","family":"Chen","sequence":"additional","affiliation":[{"name":"Institute of Health Policy and Management College of Public Health, National Taiwan University Taipei Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chie\u2010Pein","family":"Chen","sequence":"additional","affiliation":[{"name":"Division of High Risk Pregnancy Mackay Memorial Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2014,6,2]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9378(11)80001-3"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2011.10.864"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(08)60074-4"},{"key":"e_1_2_7_5_1","first-page":"1","article-title":"Births: Final data for 2004","volume":"55","author":"Martin JA","year":"2006","journal-title":"Natl Vital Stat 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