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    Gender differences in the prevalence of congenital heart disease in Down's syndrome: a brief meta-analysis.
    BMC Med Genet 2017 Oct 6;18(1):111. Epub 2017 Oct 6.
    Círculo do Coração de Pernambuco, Recife, Pernambuco, Brazil.
    Background: Down's syndrome (DS) affects one per 700 live births and congenital heart disease (CHD) occurs in 40-60% of these patients. Contributing factors to the association between DS and CHD are being unraveled. Gender could be one of them.

    Methods: We performed a meta-analysis of CHD prevalence in DS, separated by gender. Three search engines were used and 578 articles were reviewed. Twelve articles were included.

    Results: Quantitative analysis showed a higher prevalence of CHD, particularly atrioventricular septal defects (AVSD), in female patients. No differences were found in others forms of CHD.

    Conclusion: CHD, particularly AVSD, are more common in the female gender of Down's syndrome patients.

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