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