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Statistics about Prader-Willi syndrome

Prevalence and incidence statistics for Prader-Willi syndrome:

See also prevalence and incidence page for Prader-Willi syndrome

Prevalance of Prader-Willi syndrome: estimated 1 per 10,000 - 25,000 people suffer from Prader-Willi syndrome, Genetics Home Reference website

Prevalance Rate: approx 1 in 10,000 or 0.01% or 27,200 people in USA [about data]

Prader-Willi syndrome: Rare Disease Status

Prader-Willi syndrome is listed as a "rare disease" by the Office of Rare Diseases (ORD)...more »

Prader-Willi syndrome: Rare Disease Status

Prader-Willi syndrome is listed as a "rare disease" by Ophanet, a consortium of European partners ...more »

About statistics:

This page presents a variety of statistics about Prader-Willi syndrome. The term 'prevalence' of Prader-Willi syndrome usually refers to the estimated population of people who are managing Prader-Willi syndrome at any given time. The term 'incidence' of Prader-Willi syndrome refers to the annual diagnosis rate, or the number of new cases of Prader-Willi syndrome diagnosed each year. Hence, these two statistics types can differ: a short-lived disease like flu can have high annual incidence but low prevalence, but a life-long disease like diabetes has a low annual incidence but high prevalence. For more information see about prevalence and incidence statistics.


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