Originally Posted By: klydon1
Originally Posted By: Sicilian Babe
[quote=olivant]I just read a stat on the web that states that 51% of Downs babies are born to women under 30 and 72% to women under 35.


I have no idea where you read that statistic, but I had genetic counseling when I was pregnant with my second daughter. The geneticist showed me the odds of having a child with Downs Syndrome. With each passing year, the chances increased greatly.

Frequency of Down Syndrome Per Maternal Age

I don't doubt that 72% of the Downs babies come from mothers 35 and younger, but probably 95% + of pregnancies are from women under 35.



From the National Institutes of Health website:

Who is at risk for Down syndrome?
The chance of having a baby with Down syndrome increases as a woman gets older—from about 1 in 1,250 for a woman who gets pregnant at age 25, to about 1 in 100 for a woman who gets pregnant at age 40. But, most babies with Down syndrome are born to women under age 35 because more younger women have babies.

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