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I don't think there should be any set limit. However, older mothers babies are more likely to have some sort of birth defect, down syndrome, and a host of other issues.
Down syndrome is definately linked to maternal age:
Maternal Age Risk
20 Years 1 in 1,900 Births
25 1 in 1,200
30 1 in 900
33 1 in 600
36 1 in 280
39 1 in 130
42 1 in 65
45 1 in 30
48 1 in 15
Source: Halladay et al., 1995[RIGHT][INDENT]
Last edited by lpj8; 11-14-2004 at 05:27 PM..
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