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