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