Prevalence and Incidence of Boomerang dysplasia
Boomerang dysplasia: Rare Disease
Boomerang dysplasia is listed as a "rare disease" by the Office of
Rare Diseases (ORD) of the National Institutes of Health
(NIH). This means that Boomerang dysplasia, or a subtype of Boomerang dysplasia,
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 Boomerang dysplasia as a "rare disease".
More information about Boomerang dysplasia is available from Orphanet
About prevalence and incidence statistics:
The term 'prevalence' of Boomerang dysplasia usually refers to the estimated population
of people who are managing Boomerang dysplasia at any given time.
The term 'incidence' of Boomerang dysplasia refers to the annual diagnosis rate,
or the number of new cases of Boomerang dysplasia 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.