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Table 6 Association of advanced maternal age with chromosomal abnormalities

From: Clinical features and genetic analysis of Dandy-Walker syndrome

Maternal age

Total

Chromosome abnormalitya

%

X2

P

< 35 years

67

18

26.9

  

≥35 years

9

8

88.9

  

Total

76

26

34.2

10.945

0.001

  1. aNote: Including 1 case with normal karyotype but abnormal SNP-array