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Risk factors of placenta previa: a population based study and the review of the literature

Cetin Aydin, Serenat Eris Yalcin, Yakup Yalcin, Dilek Uysal, Mehmet Ozgur Akkurt, And Yavuz, Halime Sen Selim, Esra Nur Tola.

The aim of our study is to provide a population-based risk factor profile for placenta previa and thereby enable early diagnosis plus the necessary management for this risky group. Methods This research was a retrospective case control study including 25105 pregnancies in the period January 2000- December 2010. The data of 25105 pregnancies were examined on the hospital database. A total of 139 single pregnancies complicated by placenta previa were compared with a randomly selected control group of 1200 single pregnancies. Evaluation was made of risk factors for placenta previa. Results Of the 25105 pregnancies presenting at our clinic during the 10-year period, placenta previa was determined in 139, giving an incidence rate of 0.55%. In the comparison of the two groups; advanced maternal age, multiparity, a history of caesarean section, a history of abortion or uterine curettage, cigarette smoking and male gender were found to be statistically significant as a risk factor for placenta previa. Conclusions The knowledge of the predisposing obstetric factors in respect of the development of placenta previa on a population basis provides the possibility of a careful approach on an individual patient basis.

Key words: Antepartum bleeding, placental pathology, placenta previa, risk factors

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Journal of Environmental and Occupational Science


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