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  A survey on Risk factors and outcomes of women with preterm labor admitted to Valieasr hospital in Zanjan     Sohrabi D [1] * , Ghanbari Gorkani M [2]     Received: 25 Nov, 2010 Accepted: 25 Dec, 2010    Abstract  Background & Aims : Preterm delivery is a common factor in neonatal morbidity and mortality. The aim of this study was to evaluate the risk factors and outcomes on women admitted with preterm labor to Valieasr hospital in Zanjan.  Materials & Methods : This retrospective cross sectional study was carried out on 318 preterm cases and 2784 controls in 2007. The necessary information was recorded by questionnaires. Statistical analysis was performed using Pearson's Chi square Method.  Results: Of the total 4528 deliveries in 2007, 318 preterm deliveries (7%) were reported. The most common causes were: 17% over thirty five years old, multiparity 42.5%, previous placenta previa 14% and previous placenta abruption 35.5%, PROM 19.9% , Hydramnious 5.4%, Urinary tract infection 12.8%.  Conclusion: The risk factors for preterm labor were maternal age, multiparity, and previous placental abruption however, further studies are recommended to reduce the occurrence of placental abortion in the future. In order to reduce preterm labor it is necessary to identify the risk factors and raise public awareness. Keywords: Preterm Labor, Risk factor, Outcomes     Address: Histology & Embryology Faculty, Zanjan University of Medical Sciences, Zanjan, Iran, Tel: 09122415707  Email: sohrabidavood@yahoo.com   [1] Assistant Professor of Histology & Embryology Faculty, Zanjan University of Medical Sciences, Zanjan, Iran (Corresponding Author)  [2] General Practitioner, Zanjan University of Medical Sciences, Zanjan, Iran

Keywords: Preterm Labor, Risk factor, Outcomes

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