Prevalence and Incidence of Bell's Palsy
Bell's Palsy: Rare Disease
Bell's Palsy is listed as a "rare disease" by the Office of
Rare Diseases (ORD) of the National Institutes of Health
(NIH). This means that Bell's Palsy, or a subtype of Bell's Palsy,
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 Bell's Palsy as a "rare disease".
More information about Bell's Palsy is available from Orphanet
Incidence (annual) of Bell's Palsy:
40,000 annual cases in Americans ... see also overview of Bell's Palsy.
approx 1 in 6,800 or 0.01% or 40,000 people in USA [Source statistic for calcuation: "40,000 annual cases in Americans" -- see also general information about data sources]
Incidence extrapolations for USA for Bell's Palsy:
40,000 per year,
3,333 per month,
769 per week,
109 per day,
4 per hour,
0 per minute,
0 per second.
[Source statistic for calculation: "40,000 annual cases in Americans" -- see also general information about data sources]
Prevalance of Bell's Palsy:
This nerve disorder afflicts approximately 40,000 Americans
(Source: excerpt from NINDS Bell's Palsy Information Page: NINDS)
More Statistics about Bell's Palsy:
All statistics for Bell's Palsy
About prevalence and incidence statistics:
The term 'prevalence' of Bell's Palsy usually refers to the estimated population
of people who are managing Bell's Palsy at any given time.
The term 'incidence' of Bell's Palsy refers to the annual diagnosis rate,
or the number of new cases of Bell's Palsy 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.