Trisomy 18 (Edwards Syndrome) (cont.)
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Trisomy 18 Statistics
Trisomy 18 occurs in about 1 in 5,000 newborns. Approximately 80 percent of newborns affected by this disorder are female. Although women of all ages can have a child with trisomy 18, the chance of having a child with this condition increases as a woman gets older.
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