Abstract
Objectives
To determine the relationship between idiopathic polyhydramnios and fetal gender in the absence of fetal or maternal abnormalities.
Methods
This was a retrospective population-based register study. 295 women with singleton pregnancies complicated by idiopathic polyhydramnios (amniotic fluid index (AFI) higher than 24 cm) who were delivered at our institution from January 2002 till December 2012 were included. Only pregnancies with an uncomplicated outcome were accepted in this study. The incidence of the male to female fetuses was compared with the one in the general population.
Results
Among pregnancies complicated by idiopathic polyhydramnios, the following gender distribution was found: 72.9 % male and 37.1 % female. The distribution in the general population was 51.5 % female and 48.5 % male. The mean AFI was significantly increased in male fetuses (p < 0.001). The increased AFI did not correlate with gestation age, fetal head circumference or estimated fetal weight.
Conclusions
Idiopathic polyhydramnios is more frequent in male normal fetuses than in female ones.
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Acknowledgments
The following article is an original research, has not been previously published and has not been submitted for publication elsewhere while under consideration. We are grateful to the “Saint John” Clinical Emergency Hospital Administrative Committee for support.
Conflict of interest
All individuals that qualified for authorship have been included and all those included qualify for authorship. None of the authors have a conflict of interest.
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Stanescu, A.D., Banica, R., Olaru, G. et al. Idiopathic polyhydramnios and fetal gender. Arch Gynecol Obstet 291, 987–991 (2015). https://doi.org/10.1007/s00404-014-3504-1
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DOI: https://doi.org/10.1007/s00404-014-3504-1