Prevalence and Incidence of Canavan disease
Prevalance of Canavan disease:
1 per 6,400 - 13,500 people of Ashkenazi Jewish heritage suffer from Canavan disease, Genetics Home Reference website ... see also overview of Canavan disease.
approx 1 in 6,400 or 0.02% or 42,500 people in USA [Source statistic for calcuation: "1 per 6,400 - 13,500 people of Ashkenazi Jewish heritage suffer from Canavan disease, Genetics Home Reference website" -- see also general information about data sources]
Canavan disease: Rare Disease
Canavan disease is listed as a "rare disease" by the Office of
Rare Diseases (ORD) of the National Institutes of Health
(NIH). This means that Canavan disease, or a subtype of Canavan disease,
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 Canavan disease as a "rare disease".
More information about Canavan disease is available from Orphanet
About prevalence and incidence statistics:
The term 'prevalence' of Canavan disease usually refers to the estimated population
of people who are managing Canavan disease at any given time.
The term 'incidence' of Canavan disease refers to the annual diagnosis rate,
or the number of new cases of Canavan disease 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.