Fast Facts on Down syndrome (straight from the National Down Syndrome Congress)

  • Down syndrome is a common genetic variation that usually causes delay in physical, intellectual, and language development.
  • The exact causes of the chromosomal rearrangement and primary prevention of Down syndrome are currently unknown.
  • Down syndrome is one of the leading clinical causes of cognitive delay in the world – it is not related to race, nationality, religion, or socio-economic status.
  • The incidence of Down syndrome in the United States is estimated to be 1 in every 700 live births.
  • Of all children born in this country annually, approximately 5,000 will have Down syndrome.
  • There are approximately a quarter of a million families in the United States affected by Down syndrome.
  • While the likelihood of giving birth to a child with Down syndrome increases with maternal age; nevertheless, 80 percent of babies with Down syndrome are born to women under 35 years of age, as women in that age group give birth to more babies overall.
  • There is wide variation in mental abilities, behavior, and physical development in individuals with Down syndrome. Each individual has his/her own unique personality, capabilities, and talents.
  • 30–50 percent of the individuals with Down syndrome have heart defects and 8–12 percent have gastrointestinal tract abnormalities present at birth. Most of these defects are now correctable by surgery.
  • Individuals with Down syndrome benefit from loving homes, early intervention, inclusive education, appropriate medical care, and positive public attitudes.
  • In adulthood, many persons with Down syndrome hold jobs, live independently, and enjoy recreational opportunities in their communities.



List of Down syndrome organizations, National & state groups

My favorite books about Down syndrome

Celebrities that happen to have Down syndrome

Down syndrome & Famous Family Ties


From other websites

Growth Charts for Children with Down syndrome