What is Down Syndrome?
What is Down Syndrome?
- Down Syndrome: A chromosome syndrome causing physical effects and mental retardation.
- Down Syndrome: A chromosomal dysgenesis syndrome resulting from a triplication or translocation of chromosome 21. Down syndrome occurs in approximately 1:700 live births. Abnormalities are variable from individual to individual and may include mental retardation, retarded growth, flat hypoplastic face with short nose, prominent epicanthic skin folds, small low-set ears with prominent antihelix, fissured and thickened tongue, laxness of joint ligaments, pelvic dysplasia, broad hands and feet, stubby fingers, transverse palmar crease, lenticular opacities and heart disease. Patients with Down syndrome have an estimated 10 to 30-fold increased risk for leukemia; most have symptoms of Alzheimer's disease by age 40. Also known as trisomy 21 syndrome. --2004
Source - Diseases Database
- Down Syndrome: a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation.
Source - WordNet 2.1
Ophanet, a consortium of European partners,
currently defines a condition rare when it affects 1 person per 2,000.
They list Down Syndrome as a "rare disease".
Source - Orphanet
Down Syndrome: Introduction
Types of Down Syndrome:
Types of Down Syndrome:
Broader types of Down Syndrome:
How many people get Down Syndrome?
Incidence (annual) of Down Syndrome: 1-in-800 overall births
Incidence Rate of Down Syndrome: approx 1 in 800 or 0.12% or 340,000 people in USA [about data]
How serious is Down Syndrome?
Prognosis of Down Syndrome: Moderate. Survival rates are high but with mental retardation and a reduced life span due to various conditions.
Complications of Down Syndrome:
see complications of Down Syndrome
What causes Down Syndrome?
Causes of Down Syndrome: see causes of Down Syndrome
Risk factors for Down Syndrome:
see
risk factors for Down Syndrome
What are the symptoms of Down Syndrome?
Symptoms of Down Syndrome:
see symptoms of Down Syndrome
Complications of Down Syndrome:
see complications of Down Syndrome
Can anyone else get Down Syndrome?
Inheritance:
see inheritance of Down Syndrome
Inheritance of genetic conditions: see details in inheritance of genetic diseases.
Down Syndrome: Testing
Diagnostic testing: see tests for Down Syndrome.
Misdiagnosis: see misdiagnosis and Down Syndrome.
How is it treated?
Treatments for Down Syndrome:
see treatments for Down Syndrome
Research for Down Syndrome:
see research for Down Syndrome
Society issues for Down Syndrome
Hospitalization statistics for Down Syndrome:
The following are statistics from various sources about hospitalizations and Down Syndrome:
- 0.008% (1,030) of hospital consultant episodes were for Down’s Syndrome in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
- 90% of hospital consultant episodes for Down’s Syndrome required hospital admission in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
- 64% of hospital consultant episodes for Down’s Syndrome were for men in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
- 36% of hospital consultant episodes for Down’s Syndrome were for women in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
- 14% of hospital consultant episodes for Down’s Syndrome required emergency hospital admission in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
- 14.4 days was the mean length of stay in hospitals for Down’s Syndrome in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
- more statistics...»
Organs Affected by Down Syndrome:
Organs and body systems related to Down Syndrome include:
Name and Aliases of Down Syndrome
Main name of condition: Down Syndrome
Class of Condition for Down Syndrome: genetic chromosomal (trisomy), genetic-chromosomal-autosomal
Other names or spellings for Down Syndrome:
trisomy 21, mongolism
Chromosome 21 trisomy syndrome, Trisomy 21
Source - Diseases Database
Mongolism, Mongolianism, Down's syndrome, Down syndrome, Trisomy 21
Source - WordNet 2.1
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