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A member asked:
Is it true that the chances of having a child with a chromosomal abnormality increases as a womans age increases over 40 year?
A doctor has provided 1 answer
Yes: It actually increases to a small degree with every year after peak fertility in the mid 20's. At 40 the risk of a trisomy 21 Down syndrome reaches 1% while at 45 it reaches 2%. This number is added to the random risk of 4% that any pregnancy has of an unexpected event (cleft palate, premi, other defect).
Answered 2/18/2015
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