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Table 2 The results of prenatal diagnosis and clinical outcome

From: Noninvasive prenatal testing for assessing foetal sex chromosome aneuploidy: a retrospective study of 45,773 cases

SCA type

NIPT positive (N)

Karyotype analysis

Unverified (N)

Termination rate (%)

True positive (N)

False positive (N)

PPV (%)

45,X

147

7

49

12.5

91

85.71

47,XXX

61

15

14

51.72

33

20

47,XXY

71

26

13

66.67

32

73.08

47,XYY

35

10

2

83.33

22

10

  1. SCA, sex chromosome aneuploidy; PPV, positive predictive value
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Molecular Cytogenetics

ISSN: 1755-8166