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To: Hawkmoon who wrote (264462)	8/31/2008 9:22:20 PM
From: longnshort	Read Replies (1) \| Respond to of 793799

Maternal age influences the chances of conceiving a baby with Down syndrome. At maternal age 20 to 24, the probability is one in 1562; at age 35 to 39 the probability is one in 214, and above age 45 the probability is one in 19.[14] Although the probability increases with maternal age, 80% of children with Down syndrome are born to women under the age of 35,[15] reflecting the overall fertility of that age group. Recent data also suggest that paternal age, especially beyond 42,[16] also increases the risk of Down Syndrome manifesting in pregnancies in older mothers.[17] the odds of a 20-25 year old is like 0.1 the odds of a 16 year old is like zero. a 44 year old is 3.6% of births