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Table 4 Positive serological and positive NIPT

From: Prenatal diagnosis of 4953 pregnant women with indications for genetic amniocentesis in Northeast China

 

Cases, n

DS≧1:270 & ES≧1:350, n

DS 1:270~1:500 & ES 1:350~1:500, n

DS and ES 1:500~1:1000, n

Positive serological

102

82

16

4

Positive NIPT

20

14

4

2