Prevalence and Incidence of Woolly hair, congenital
Woolly hair, congenital: Rare Disease
Woolly hair, congenital is listed as a "rare disease" by the Office of
Rare Diseases (ORD) of the National Institutes of Health
(NIH). This means that Woolly hair, congenital, or a subtype of Woolly hair, congenital,
affects less than 200,000 people in the US population.
About prevalence and incidence statistics:
The term 'prevalence' of Woolly hair, congenital usually refers to the estimated population
of people who are managing Woolly hair, congenital at any given time.
The term 'incidence' of Woolly hair, congenital refers to the annual diagnosis rate,
or the number of new cases of Woolly hair, congenital 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.