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Diseases » Alopecia universalis » Prevalence

Prevalence and Incidence of Alopecia universalis

Alopecia universalis: Rare Disease

Alopecia universalis is listed as a "rare disease" by the Office of Rare Diseases (ORD) of the National Institutes of Health (NIH). This means that Alopecia universalis, or a subtype of Alopecia universalis, 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 Alopecia universalis as a "rare disease". More information about Alopecia universalis is available from Orphanet

About prevalence and incidence statistics:

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