In a cross-sectional study encompassing 12,625 participants, the prevalence of psoriasis among adults in the United States was determined to be 3.0%, equating to over 7.5 million affected individuals. Psoriasis was most prevalent among non-Hispanic White individuals, with no significant change in prevalence observed since 2003. This finding underscores the persistent burden of psoriasis as one of the most common immune-mediated diseases affecting the US adult population, highlighting the importance of prevalence data in shaping research, education, and health policy efforts aimed at addressing the condition.

The study, utilizing data from the National Health and Nutrition Examination Survey, provides crucial insights into psoriasis prevalence trends and the demographic characteristics of affected individuals. Despite variations across racial and ethnic groups, psoriasis prevalence remained consistent regardless of marital status, education, income, or medical insurance status.

Reference: Armstrong AW, Mehta MD, Schupp CW, Gondo GC, Bell SJ, Griffiths CEM. Psoriasis Prevalence in Adults in the United States. JAMA Dermatol. 2021 Aug 1;157(8):940-946. doi: 10.1001/jamadermatol.2021.2007. PMID: 34190957; PMCID: PMC8246333.