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Table 4 Prevalence rates of pregnancies with Down syndrome (per 10000), Czech Republic (1994–98)

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

Age of mother 1994 1995 1996 1997 1998 Total
-19 6.26 8.45 4.90 5.74 8.25 6.70
20–22 5.36 6.16 8.14 7.66 11.01 7.36
23–25 5.62 8.13 9.15 8.90 7.35 7.80
26–28 7.60 9.27 6.23 8.14 11.82 8.69
29–31 12.96 6.68 6.80 9.60 16.35 10.57
32–34 26.79 13.14 26.73 14.56 31.52 22.66
35–37 21.02 36.90 48.87 45.26 52.05 40.93
38–40 125.28 96.85 86.68 102 92.88 101.07
41–43 306.12 187.2 305.6 292.4 400 297.03
44+ 333.33 615.4 169.5 204.1 317.5 337.84
Total 10.94 11 12.34 12.32 16.29 12.50