Papulopustular rosacea: prevalence and relationship to photodamage.
BACKGROUND
The prevalence and pathogenesis of rosacea is uncertain. Previously, studies used varying definitions of disease and have not explored the relationship of its prevalence to ultraviolet (UV) exposure or photodamage.


OBJECTIVE
We investigated the prevalence of papulopustular rosacea (PPR) and its relationship to UV radiation exposure in 1000 randomly selected Irish individuals.


METHODS
A total of 1000 individuals (500 with low UV exposure and 500 with high UV exposure) were examined. PPR was diagnosed using a standardized definition and photodamage was assessed using a photodamage scale.


RESULTS
The prevalence of PPR was 2.7%. PPR prevalence was not significantly related to photodamage or UV exposure.


CONCLUSIONS
The power to compare UV exposure among those with and without PPR was limited.


CONCLUSIONS
PPR prevalence in Ireland was 2.7%. UV radiation exposure does not appear to affect the prevalence of PPR.
McAleer
Maeve A
MA
Regional Center of Dermatology, Mater Misericordiae University Hospital, Dublin, Ireland.
Fitzpatrick
Patricia
P
Powell
Frank C
FC
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D007494:Ireland / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D012393:Rosacea / Q000453:epidemiology / Q000209:etiology*; D012867:Skin / Q000528:radiation effects*; D012880:Skin Pigmentation; D014466:Ultraviolet Rays / Q000009:adverse effects*