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International Journal of Reproductive BioMedicine
Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences of Yazd
ISSN: 1680-6433
EISSN: 2008-2177
Vol. 11, No. 5, 2013, pp. 385-390
Bioline Code: rm13038
Full paper language: English
Document type: Research Article
Document available free of charge

International Journal of Reproductive BioMedicine, Vol. 11, No. 5, 2013, pp. 385-390

 en The relationship between vaginal bleeding in the first and second trimester of pregnancy and preterm labor
Sharami, Seyedeh Hajar; Faraji Darkhaneh, Roya; Zahiri, Ziba; Milani, Forozan; Asgharnia, Maryam; Shakiba, Maryam & Didar, Zirak


Background: Vaginal bleeding is a common complication during pregnancy, which is observed in about 1/4 of pregnancies and in half of cases can lead to abortion. If vaginal bleeding happens during pregnancy some adverse pregnancy outcomes, including perinatal mortality and morbidity, low birth weight and preterm delivery will be increased.
Objective: The aim of this study was to determine the relationship between vaginal bleeding and its characteristics in the first and second trimester of pregnancy and preterm labor.
Materials and Methods: This is a case-control study conducted on 440 pregnant women referred to Al-Zahra Hospital in Rasht, Iran. Data were collected by a form. The form included demographic characteristics and confounding factors, the occurrence of bleeding during pregnancy and its features. Data were analyzed by T test, chi square and logistic regression in SPSS 16.
Results: Findings showed that vaginal bleeding was associated with 3 times increased risk of preterm delivery (OR: 3, 1.84-4.89). Also, findings showed that bleeding characteristics including bleeding time, frequency, severity and intensity was significantly associated with preterm labor.
Conclusion: According to significant association between vaginal bleeding and preterm delivery, it seems that performing some interventions to prevent preterm labor could be appropriate.

Pregnancy; Preterm labor; Vaginal bleeding

© Copyright 2013 - Iranian Journal of Reproductive Medicine
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