I'm really sorry that I can't find it right now, but I am certain that I read that the prenatal tests for DS have a high false positive rate. Which makes it especially sad that so many loving parents abort wanted children after receiving a positive diagnosis of DS.
A really good place to get lots of information about DS, prenatal testing for DS, and raising a child with DS is http://mommylife.net It's the blog of a mother of 12 children, 4 of whom have DS. (After having one biological son with DS, she adopted 3 more.) Type "down syndrome" or "prenatal testing" into her sidebar for lots of good posts.
at 3:01 PM on Jul. 16, 2008