Down Syndrome More Prevalent in U.S.

Down syndrome is more common in the U.S. than health officials previously thought, according to updated data on prevalence rates of 18 types of birth defects published in the CDC Morbidity and Mortality Weekly Report.


"Improved National Prevalence Estimates for 18 Selected Major Birth Defects --- United States, 1999--2001." MMWR January 6, 2006; vol. 54(51&52);1301-1305. Available online at http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5451a2.htm