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. 2025 Aug 12;25:838. doi: 10.1186/s12884-025-07992-4

Table 7.

Types and proportions of chromosomal abnormalities detected in prenatal diagnosis

Karyotype AMA MSS NIPT MSS
+
NIPT
PUF POH PCAC Total Proportion
(%)
Trisomy 21 80 51 72 23 16 2 244 43.81
Trisomy 18 19 22 6 5 3 55 9.87
Trisomy 13 3 1 3 3 10 1.80
47,XXY 7 1 10 2 20 3.59
47,XXX 8 3 6 1 18 3.23
45,X 1 3 1 3 8 1.44
47,XYY 1 2 4 7 1.26
48,XXYY 1 1 2 0.36
69,XXX 1 1 0.18
69,XXY 1 1 0.18
Structural 40 46 23 3 22 6 8 148 26.57
Mosaic 10 20 6 1 1 1 1 40 7.18
Marker 1 1 1 3 0.54
Total 171 149 134 35 48 11 9 557 100.00