The prevalence of psoriasis in the Mongoloid race.

Statistics for psoriatic patients from the skin clinics of the Hong Kong Government and those from Sendai, Japan, are compared with statistics from five major cities in mainland China. These statistics were compiled since 1949, following the establishment of the People's Republic of China. Additional statistics from seven other surveys among the general population conducted in recent years (1974 to 1981), for a total of 670,000 persons examined, all showed a remarkably constant and uniformly low prevalence of psoriasis at around 0.3% in five of seven surveys. The overall statistics present the evidence of the prevalence of psoriasis to be well under 1% in the Mongoloid races of the Far East.