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Int J Womens Health. 2011;3:213-7. doi: 10.2147/IJWH.S20557. Epub 2011 Jul 20.

Fetal gender ratio in recurrent miscarriages.

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Clinic of Obstetrics and Gynecology.



The purpose of this study was to evaluate the gender ratio and incidence of chromosomal anomalies in the products of conception (POC) from recurrent miscarriages.


We determined the karyotypes of POC from patients with recurrent spontaneous miscarriages between 1999 and 2009.


In total, 313 specimens were successfully karyotyped, with a median gestational age of 10 weeks at miscarriage (interquartile range 8-13); 199 (64%) were females and 114 (36%) were males. In total, 121 (39%) had abnormal karyotypes, the most prevalent of which were chromosome 21 and 16 trisomies, triploidy, and monosomy X.


Our findings suggest that female POC might be more susceptible to recurrent miscarriages than male ones during embryogenesis, implantation, and initial fetal development.


fetal gender; karyotype anomalies; recurrent miscarriages

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