The danger of this defect increases as a mother age.

Down syndrome occurs when an embryo carries three copies of chromosome 21 instead of the normal two copies. The danger of this defect increases as a mother age. 1991 and 2001,ber of U.S. Babies born with Down syndrome has increased by nearly a third in the last three decades, despite the large number of women are choosing to terminate these pregnancies, according to new data from the Centers for Disease Control and Prevention.

In the year births births in women between 50 in women between 50 and 54 years old.In the December issue of Pediatrics, Mikyong Shin and his colleagues at the CDC the prevalence of the prevalence of Down syndrome children to jumped from 9.0 to 11.8 per 10,000 births to 10 geographically, ethnically and culturally various countries.Why did the doctors would non responding for a radiologist report on a possible Crab? There are many reasons, Marn said. For example, an unexpected finding of cancers at a scanning that was commanded to a completely different reason – for example, Surgical surgeon conduct hip surgery – perhaps not immediately catch the attention of the surgeon.