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J Eur Acad Dermatol Venereol. 2010 May;24(5):565-71. doi: 10.1111/j.1468-3083.2009.03472.x. Epub 2009 Oct 23.

Risk factors associated with rosacea.

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Clinic of Dermatology, University of Tartu, Tartu, Estonia.



Although rosacea is a common disease, the cause of disease is still a mystery -Helicobacter pylori infection, genetic predisposition, climatic factors, and detrimental habits are implicated as triggers of rosacea.


The aim of current study is to evaluate several suspected risk factors coincidently.


Patients with rosacea from a dermatology clinic and skin-healthy controls from an randomly selected employees' population enrolled the study. Skin status were evaluated by one and same dermatologist. Participants were queried for age, gender, sun-reactive skin type, and detrimental habits using a questionnaire; blood samples for detecting Helicobacter pylori serostatus were collected.


Totally 145 skin-healthy controls and 172 subjects either with flushing episodes or established rosacea included the study. In multivariate analysis, rosacea patients had significantly higher chance to have photosensitive skin types (OR 1.75; 95% CI 1.01-3.04; P < 0.05), positive family history to rosacea (OR 4.31; 95% CI 2.34-7.92; P < 0.0001) or previous smoking status (OR 2.01; 95% CI 1.07-3.80; P < 0.05) comparing with skin-healthy controls. There were no statistically significant differences either in gender, Helicobacter pylori serostatus, caffeine intake, alcohol consumption, occupational environment, or education level between rosacea patients and controls.


Rosacea is foremost associated with familial predisposition. There is no association between Helicobacter pylori infection and rosacea in current study.

[Indexed for MEDLINE]

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