Prevalence and Incidence of Williams Syndrome

Prevalance of Williams Syndrome:

estimated 1 per 7,500 - 20,000 people suffer from Williams syndrome, Genetics Home Reference website ... see also overview of Williams Syndrome.

Prevalance Rate:

approx 1 in 7,500 or 0.01% or 36,266 people in USA [Source statistic for calcuation: "estimated 1 per 7,500 - 20,000 people suffer from Williams syndrome, Genetics Home Reference website" -- see also general information about data sources]

Williams Syndrome: Rare Disease

Williams Syndrome is listed as a "rare disease" by the Office of Rare Diseases (ORD) of the National Institutes of Health (NIH). This means that Williams Syndrome, or a subtype of Williams Syndrome, affects less than 200,000 people in the US population.

About prevalence and incidence statistics:

The term 'prevalence' of Williams Syndrome usually refers to the estimated population of people who are managing Williams Syndrome at any given time. The term 'incidence' of Williams Syndrome refers to the annual diagnosis rate, or the number of new cases of Williams 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.

 » Next page: Videos related to Williams Syndrome

Rate This Website

What do you think about the features of this website? Take our user survey and have your say:

Website User Survey

Medical Tools & Articles:

Next articles:

• Videos related to Williams Syndrome
• Prognosis of Williams Syndrome
• Types of Williams Syndrome
• Causes of Williams Syndrome
• Risk Factors for Williams Syndrome

Tools & Services:

• Bookmark this page
• Take a survey relating to Williams Syndrome
• Symptom Search
• Symptom Checker
• Medical Dictionary
• Give your feedback

Medical Articles:

• Disease & Treatments Search
• Misdiagnosis Center
• Full list of interesting articles

Forums & Message Boards

• Ask or answer a question at the Boards:
• I cannot get a diagnosis. Please help.
• Tell us your medical story.
• Share your misdiagnosis story.
• What is the best treatment for my condition?
• See all the Boards.

Enter your search terms Submit search form
Search The Web Search wrongdiagnosis.com

Common Health Mistakes

Symptom
Checker

Search Specialists by State and City