Epidemiology of psoriasis.

摘要: The prevalence of psoriasis is relatively high in the general population, ranging between 0.6% and 4.8%, mainly as a result chronicity absence cure. Although genetic-environmental interaction has been proposed model for causation psoriasis, evidence environmental factors rather scarce. Risk factors, which have documented epidemiological studies include smoking, alcohol consumption, diet, infection, drugs, stressful life events. Psoriasis affects quality to substantial degree. Apart from few cross-sectional surveys large series psoriatic patients, there no formal natural history prognosis established psoriasis. By imposing methodologic control numerate approach, epidemiology can offer major contribution understand