Prevalence and Incidence of Cushing's symphalangism

Cushing's symphalangism: Rare Disease

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

About prevalence and incidence statistics:

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