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