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Diseases » Multiple system atrophy » Prevalence

Prevalence and Incidence of Multiple system atrophy

Multiple system atrophy: Rare Disease

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

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

About prevalence and incidence statistics:

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