Incidence and prevalence of keratoconus in Denmark.
OBJECTIVE
To estimate the prevalence and incidence of hospitalized keratoconus (KC) in Denmark.


METHODS
Data extracts from the National Patient Registry under the National Board of Health (which covers the entire Danish population) were analysed.


RESULTS
The prevalence of KC was estimated at 86 patients per 100,000 residents and the incidence at 1.3 per 100 000 per year.


CONCLUSIONS
KC is rather widespread in Denmark, with more than 4600 affected individuals.
Nielsen
Kim
K
Department of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark. nikim@as.aaa.dk
Hjortdal
Jesper
J
Aagaard Nohr
Ellen
E
Ehlers
Niels
N
D003718:Denmark / Q000453:epidemiology; D006760:Hospitalization / Q000706:statistics & numerical data*; D006801:Humans; D015994:Incidence; D007640:Keratoconus / Q000453:epidemiology* / Q000628:therapy*; D008875:Middle Aged; D015995:Prevalence; D012042:Registries