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Diseases » Variegate porphyria » Prevalence
 

Prevalence and Incidence of Variegate porphyria

Prevalance of Variegate porphyria:

approximately 3 per 1,000 white South Africans suffer from variegate porphyria, Genetics Home Reference website ... see also overview of Variegate porphyria.

Prevalance Rate:

approx 1 in 333 or 0.30% or 816,000 people in USA [Source statistic for calcuation: "approximately 3 per 1,000 white South Africans suffer from variegate porphyria, Genetics Home Reference website" -- see also general information about data sources]

Variegate porphyria: Rare Disease

Variegate porphyria is listed as a "rare disease" by the Office of Rare Diseases (ORD) of the National Institutes of Health (NIH). This means that Variegate porphyria, or a subtype of Variegate porphyria, affects less than 200,000 people in the US population.

About prevalence and incidence statistics:

The term 'prevalence' of Variegate porphyria usually refers to the estimated population of people who are managing Variegate porphyria at any given time. The term 'incidence' of Variegate porphyria refers to the annual diagnosis rate, or the number of new cases of Variegate porphyria 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.

 

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