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Table 7 Comparison between the no ultrasound abnormality group and the ultrasound abnormality group

From: Application of chromosome microarray analysis in prenatal diagnosis

  Ultrasound abnormalities group (n = 383) No ultrasound abnormalities group (n = 64) χ2 P value*
Abnormal karyotype detection rate n (%) 11 (2.87) 12 (18.75) 25.17 < 0.01
PCNVS detection rate n (%) 14 (3.66) 3 (4.68) 0.0022 0.963
VOUS detection rate n (%) 20(5.22) 11 (17.19) 10.38 0.00127
  1. *Pearson Chi-Square significant < 0.05