Rosacea prevalence study according to gender and age of two northwest chinese cities: Lanzhou & Xining

Background: There is a paucity of Rosacea epidemiological studies outside of Europe, where two prevalence studies have been published. This article found that Rosacea is in North West China at epidemic levels. The environmental characteristics of the cities studied are outlined. The increasing prevalence shown in the study, highlight these environmental characteristics, which should influence patient care and clinical knowledge in Rosacea.