Characterization of rosacea in Chinese: An analysis of 254 cases.

BACKGROUND Rosacea is a common chronic inflammatory dermatosis with uncertainty of etiology. Although clinical features and risk factors of the disease in Caucasians have been reported, this information in Chinese is largely unavailable. AIMS To analyze the clinical features and associated risk factors of rosacea in Chinese. METHODS A questionnaire was given to outpatients with rosacea who visited the dermatology department of the first affiliated hospital of Kunming Medical University from June 2018 to March 2019. Analyses included demographic characteristics of subjects, clinical characteristics, and risk factors of rosacea. RESULTS A total of 254 outpatients completed the questionnaire. The ratio of female to male was 5.68:1.00. The mean age at onset was 31.18 ± 10.23 years. Erythematotelangiectatic subtype accounted for 51.60%, while 39% of the subjects were of papulopustular subtype. The rest were phymatous type (9.40%). Subjects with flushing, persistent facial erythema, and telangiectasia accounted for 87.80%, 84.65%, and 79.13%, respectively. One hundred and six subjects (41.73%) had papules or pustules, and 24 subjects (9.40%) were with phymatous changes. The most commonly involved sites were the cheeks (92.91%), followed by the nose (81.10%), the perioral area (60.23%), and the forehead (50.79%). The clinical symptoms included burning (70.08%), dryness (48.03%), and itching (31.89%). The main risk factors were sun exposure (90.55%), temperature change (87.40%), etc. Fifty-one (20.08%) patients had comorbidities. CONCLUSIONS Rosacea mainly affects young females. The common signs and symptoms include flushing, persistent facial erythema, and burning. Sun exposure and temperature changes are the common risk factors. Patients can have comorbidities of systemic disorders.