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Incidences and Maternal Age Print E-mail

 

Maternal Age Incidence of Down syndrome Maternal Age Incidence of Down syndrome
20 1 in 2000 35 1 in 350
21 1 in 1700 36 1 in 300
22 1 in 1500 37 1 in 250
23 1 in 1400 38 1 in 200
24 1 in 1300 39 1 in 150
25 1 in 1200 40 1 in 100
26 1 in 1100 41 1 in 80
27 1 in 1050 42 1 in 70
28 1 in 1000 43 1 in 50
29 1 in 950 44 1 in 40
30 1 in 900 45 1 in 30
31 1 in 800 46 1 in 25
32 1 in 720 47 1 in 20
33 1 in 600 48 1 in 15
34 1 in 450 49 1 in 10