Table 1 The detection rate of abnormal CNVs in 713 fetuses.

From: Copy number variations in ultrasonically abnormal late pregnancy fetuses with normal karyotypes

Indication for prenatal diagnosis

Number

Number of abnormal CNV

Total (%)

Sonographic structural malformation

237

30

12.7

Non-structural abnormalities

476

27

5.7

  1. CNV copy number variation.