The growth of women been diagnosed with Down's syndrome babies comes as a result of improvements in screening and delayed motherhood, doctors have said. In 1989-90 there were 1,075 incidents of Down's syndrome births in England and Wales but by 2008 that number had jumped to 1075. While the risk of having a baby with Down's syndrome is one in 940 for a woman aged 30. By the age of 40, the risk increases to one in 85.
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