Down Syndrome information from trusted sources:
Down syndrome - Wikipedia, the free encyclopedia
Down syndrome, or Down's syndrome (primarily in the United Kingdom), trisomy 21, or trisomy G, is a chromosomal disorder caused by the presence of all or ...
Down syndrome was first described in 1866. The cause of Down syndrome (trisomy 21) was discovered in 1959. Down syndrome is relatively well known, with distinctive characteristics such as mental retardation, distinguishing facial features, and other traits. In the United States, Down syndrome occurs in 1 in 800 live births, and approximately 6000 children are born with Down syndrome each year. About 85% of infants with Down syndrome survive 1 year, and 50% of people with Down syndrome live longer than 50 years.
2 National Down Syndrome Congress. (n.d.). Facts about Down syndrome. ... 3 National Down Syndrome Society. (n.d.) Down syndrome fact sheet. ...
Down Syndrome and Your Unborn Baby -- familydoctor.org
Aug 15, 2000 ... Information about what you need to know about Down syndrome during pregnancy from the American Academy of Family Physicians.
National Down Syndrome Society - Down Syndrome Fact Sheet
Down syndrome is the most commonly occurring chromosomal condition. ... There are more than 400000 people living with Down syndrome in the United States . ...
Down syndrome is a genetic condition in which a person has 47 chromosomes instead of the usual 46.
Trisomy 21: The Origin of Down Syndrome
A description of Trisomy 21 (Down syndrome) by Len Leshin, MD, FAAP.
Down Syndrome: eMedicine Ophthalmology
May 3, 2010 ... Overview: Down syndrome is the trisomy of chromosome 21. This is the most common trisomy among live births. The syndrome was named after ...
Risk Factors for Down Syndrome-Population-Based Case-Control Study ...
Information on Down Syndrome. Provided by the US Centers for Disease Control & Prevention.
This leaflet is designed to help people who have Down's syndrome, ... One of the biggest problems for many people with Down's syndrome is the ...