Advances in screening have offset an increase in Down syndrome

The number of diagnoses of Down's syndrome has increased by almost three quarters (71%) from 1989/90 to 2007/08, largely due to the considerable increase in the number of older mothers over this period. However, the number of babies born with this condition during the same period fell by 1% because of antenatal screening and subsequent terminations, finds research published on BMJ.com today.

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