Prevalence and Incidence of Friedreich ataxia
Prevalance of Friedreich ataxia:
estimated 1 per 40,000 people are affected by Friedreich ataxia, Genetics Home Reference website ... see also overview of Friedreich ataxia.
approx 1 in 40,000 or 0.00% or 6,800 people in USA [Source statistic for calcuation: "estimated 1 per 40,000 people are affected by Friedreich ataxia, Genetics Home Reference website" -- see also general information about data sources]
Friedreich ataxia: Rare Disease
Friedreich ataxia is listed as a "rare disease" by the Office of
Rare Diseases (ORD) of the National Institutes of Health
(NIH). This means that Friedreich ataxia, or a subtype of Friedreich ataxia,
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 Friedreich ataxia as a "rare disease".
More information about Friedreich ataxia is available from Orphanet
About prevalence and incidence statistics:
The term 'prevalence' of Friedreich ataxia usually refers to the estimated population
of people who are managing Friedreich ataxia at any given time.
The term 'incidence' of Friedreich ataxia refers to the annual diagnosis rate,
or the number of new cases of Friedreich ataxia 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.