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Table 5 Births with Amniocentesis by Mother's education and age, California, 1998 (in %)

From: Down syndrome, paternal age and education: comparison of California and the Czech Republic

Mother's education: Mother's age:
(in years) - 19 years 20–34 years 35 + years Total
0 – 8 years 0.3 0.4 2.0 0.6
9 – 11 years 0.3 0.5 4.0 0.6
12 – 15 years 0.5 0.9 11.1 2.2
16 + years - 1.7 16.5 6.1
Total 0.4 0.9 11.5 2.5
  1. Source: CDC, 1998, Birth Cohort Data Set