Prevalence and Incidence of Down Syndrome

Ophanet, who are a consortium of European partners, currently defines a condition rare when if affects 1 person per 2,000. They list Down Syndrome as a "rare disease". More information about Down Syndrome is available from Orphanet

Incidence (annual) of Down Syndrome:

1-in-800 overall births ... see also overview of Down Syndrome.

Incidence Rate:

approx 1 in 800 or 0.12% or 340,000 people in USA [Source statistic for calcuation: "1-in-800 overall births" -- see also general information about data sources]

Incidence extrapolations for USA for Down Syndrome:

340,000 per year, 28,333 per month, 6,538 per week, 931 per day, 38 per hour, 0 per minute, 0 per second. [Source statistic for calculation: "1-in-800 overall births" -- see also general information about data sources]

Incidence statistics for Down Syndrome:

The following statistics relate to the incidence of Down Syndrome:

• Incidence risk of Down syndrome increases with mother's age
• Less than 1-in-1,000 risk of Down syndrome for women under 30
• About 1-in-25 risk of Down syndrome for a 45-year-old mother
• 40 infants were born alive with Down Syndrome in the UK 2002 (University of Ulster, 2003)
• 4 fetal deaths or still births occurred due to Down Syndrome in the UK 2002 (University of Ulster, 2003)
• 26 cases of induced abortions occurred following prenatal diagnosis of Down Syndrome in the UK 2002 (University of Ulster, 2003)
• Down Syndrome occurred in 23.81 per 10,000 births in the UK 2002 (University of Ulster, 2003)
• more statistics...»

More Statistics about Down Syndrome:

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