Down syndrome is the most commonly occurring genetic condition. About one in every 700 babies in the United States is born with Down syndrome. There are over 4 million people in the world with Down syndrome, over 400,000 in the US alone!
Down syndrome occurs when an individual has a full or partial extra copy of chromosome 21. This additional genetic material alters the course of development and causes the characteristics associated with Down syndrome.
In a small number of cases (~4%), Down syndrome occurs when part of chromosome 21 becomes attached (translocated) to another chromosome (usually 14). People with translocation Down syndrome can inherit the condition from an unaffected parent.
A very small percentage of people with Down syndrome (~1%) have an extra copy of chromosome 21 in only some of the body's cells, which is often referred to as "mosaic" Down syndrome.
Trisomy 21 usually occurs in egg cells during reproduction, but occasionally occurs in sperm cells.
Down syndrome occurs in people of all races and economic levels.
80% of babies born with Down syndrome are born to mothers under age 35.
Young adults with Down syndrome are graduating from high school with their peers and some are going on to college.
Marriage breakdown in families with a Down syndrome child is no more frequent than for the rest of the population & may even be less frequent.
All people with Down syndrome experience cognitive delays, but the effect is usually mild to moderate and is not indicative of the many strengths and talents that each individual possesses.
Quality educational programs, a stimulating home environment, good health care, and positive support from family, friends and the community enable people with Down syndrome to develop their full potential and lead very fulfilling lives.
Down Syndrome Network
The Down Syndrome Network operates as a not-for-profit orgnaization serving families with members who have Down syndrome in Champaign and surrounding counties. The DSN offers support to families by providing current information for parents, professionals and the general public. We also reach out to new parents and try to raise awareness of Down syndrome in our communities.
