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Table 1 Frequency of chromosome abnormalities in POC with abnormal karyotypes (n = 1872)

From: Abnormalities in spontaneous abortions detected by G-banding and chromosomal microarray analysis (CMA) at a national reference laboratory

Type

Approximate proportion of abnormal karyotypes

Aneuploidy

 

  Autosomal trisomy

1236 (66%)

  Autosomal monosomy

19 (1%)

  45, X

243 (13%)

Triploidy

262 (14%)

Tetraploidy

75 (4%)

Other (inversions, translocations, etc.)

37 (2%)

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Molecular Cytogenetics

ISSN: 1755-8166