Abstract
Psoriasis is a common disease with substantial effects on quality of life. The prevalence of psoriasis in African Americans has been previously reported as rare. However, there have been no population-based studies to assess the prevalence and burden of psoriasis in African Americans. We sought to measure the prevalence and burden of psoriasis in African Americans compared with Caucasians. Patients were randomly selected from the United States population and were asked standard demographic questions. Patients who reported a physician diagnosis of psoriasis were asked additional questions related to quality of life. The total sample included 27,220 individuals of which 21,921 were Caucasian and 2443 were African American. The prevalence of psoriasis was 2.5% in Caucasian patients and was 1.3% in African American patients. African Americans had an approximately 52% reduction in the prevalence of psoriasis compared with Caucasians ( P < .0001). African Americans and Caucasians had similar impacts on quality of life and treatment satisfaction based on single global questions. Although psoriasis is less common in African Americans than in Caucasians, it is not rare in either demographic and carries a substantial burden in both groups.
Published Version
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