Risk factors for spontaneous preterm delivery before 34 weeks of gestation among Taiwanese women

Taiwanese Journal of Obstetrics & Gynecology
Chung-Chin LoTai-Ho Hung

Abstract

To identify the risk factors for spontaneous preterm delivery before 34 weeks of gestation among Taiwanese women. This retrospective cohort study involved 36,453 Taiwanese women who delivered between July 1990 and December 2003. Pregnancies complicated by multiple gestation, fetal anomalies, and iatrogenic preterm births due to maternal or fetal indications were excluded. Five hundred and five spontaneous preterm deliveries (1.4%) were identified. Risk factors for early preterm delivery included a prior preterm delivery (odds ratio [OR], 16.5; 95% confidence interval [CI], 11.1-24.6), placental abruption (OR, 13.4; 95% CI, 9.4-19.2), history of fetal demise (OR, 11.8; 95% CI, 7.7-18.0), chorioamnionitis (OR, 10.5; 95% CI, 7.4-14.9), oligohydramnios (OR, 10.1; 95% CI, 6.7-15.3), history of abruption (OR, 7.9; 95% CI, 2.4-26.0), unmarried (OR, 6.2; 95% CI, 2.9-13.2), conception by reproductive technology (OR, 2.7; 95% CI, 1.4-5.5), maternal age less than 20 years (OR, 3.5; 95% CI, 1.8-6.7), maternal age greater than 34 years (OR, 1.6; 95% CI, 1.2-2.1), three or more abortions (OR, 1.6; 95% CI, 1.9-2.3), and premature rupture of membranes (OR, 1.6; 95% CI, 1.3-2.0). Some of the risk factors for early preterm delivery among Taiwane...Continue Reading

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Citations

Jun 12, 2009·Journal of the Formosan Medical Association = Taiwan Yi Zhi·Chia-Hui LinChien-Nan Lee
Sep 24, 2009·European Journal of Obstetrics, Gynecology, and Reproductive Biology·T'sang-T'ang HsiehTai-Ho Hung
Feb 25, 2010·The Journal of Obstetrics and Gynaecology Research·Marisa IpMichelle A Williams
May 25, 2018·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Sara PintoHercília Guimarães
Nov 22, 2016·American Journal of Reproductive Immunology : AJRI·Nathalia Mayumi Noda-NicolauRamkumar Menon
Apr 11, 2020·Obstetrics and Gynecology International·Junita IndartiRaymond Surya

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