20 Facts You Should Know About Down Syndrome

In keeping with celebrating Down Syndrome Awareness month, here are some additional facts on Down syndrome:

down-syndrome-facts

  • Down syndrome occurs when an individual has a full or partial extra copy of chromosome 21. This alters the course of development and causes characteristics associated with Down syndrome.
  • There are 3 types of Down syndrome

downsyndrometypes

  • It is the most commonly occurring chromosome condition
  • 1 in 691 babies are born in the United States
  • The incidences increases with the age of the mother due to high fertility rates in younger women.
  • An increased for certain medical conditions such as, congenital heart defects, respiratory, Alzheimer disease and childhood Leukemia.
  • Common traits include low muscle tone, small stature, upward slant in the eyes and a single deep crease across the center of the palm.
  • Translocation is the only type that is inherited
  • Is named after British Doctor John Langdon Downs the first to categorize the common features
  • Dr. Jerome Lejeune discovered Down syndrome is a genetic disorder
  • A person has 3 copies of chromosome 21 instead of 2
  • Is the leading cause of intellectual and developmental disabilities in the United States and the World.
  • 38% of Americans know someone with Down syndrome
  • The average lifespan is 60. In 1983, it was 25.
  • 39.4 % are in the mild intellectual disability range of 50-70.
  • 1% are on the border
  • A growing number live independently
  • Occurs in all races and economic levels.
  • Some high school graduates with Down syndrome participate in post-secondary education.
  • In the United States, Down syndrome is the least funded major genetic condition

 

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