Shanu Kohli Kurd1, Joel M Gelfand. 1. Department of Dermatology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA.
Abstract
BACKGROUND: Psoriasis is a predictor of morbidity. It is important to determine the extent to which psoriasis remains undiagnosed. OBJECTIVE: To determine the prevalence of psoriasis. METHODS: We conducted a cross-sectional study using the National Health and Nutrition Examination Survey 2003-2004. RESULTS: The prevalence of diagnosed psoriasis was 3.15% (95% confidence interval [CI], 2.18-4.53), corresponding to 5 million adults. Approximately 17% of these patients have moderate to severe psoriasis based on body surface area report and 25% rate psoriasis a large problem in everyday life. The prevalence of undiagnosed active psoriasis by conservative estimate was 0.4% (95% CI, 0.19-0.82), corresponding to approximately 600,000 US adults, and 2.28% (95% CI, 1.47-3.50) by a broader definition, corresponding to 3.6 million US adults. Undiagnosed patients had a trend toward being more likely to be male, nonwhite, less educated, and unmarried compared with patients who had received a diagnosis. LIMITATIONS: The method for determining the presence of psoriasis had limited ability to detect mild disease and only fair interrater agreement. CONCLUSION: More than 5 million adults have been diagnosed with psoriasis. A large number have undiagnosed psoriasis and there are important disparities which may be associated with not receiving medical attention.
BACKGROUND:Psoriasis is a predictor of morbidity. It is important to determine the extent to which psoriasis remains undiagnosed. OBJECTIVE: To determine the prevalence of psoriasis. METHODS: We conducted a cross-sectional study using the National Health and Nutrition Examination Survey 2003-2004. RESULTS: The prevalence of diagnosed psoriasis was 3.15% (95% confidence interval [CI], 2.18-4.53), corresponding to 5 million adults. Approximately 17% of these patients have moderate to severe psoriasis based on body surface area report and 25% rate psoriasis a large problem in everyday life. The prevalence of undiagnosed active psoriasis by conservative estimate was 0.4% (95% CI, 0.19-0.82), corresponding to approximately 600,000 US adults, and 2.28% (95% CI, 1.47-3.50) by a broader definition, corresponding to 3.6 million US adults. Undiagnosed patients had a trend toward being more likely to be male, nonwhite, less educated, and unmarried compared with patients who had received a diagnosis. LIMITATIONS: The method for determining the presence of psoriasis had limited ability to detect mild disease and only fair interrater agreement. CONCLUSION: More than 5 million adults have been diagnosed with psoriasis. A large number have undiagnosed psoriasis and there are important disparities which may be associated with not receiving medical attention.
Authors: Joel M Gelfand; Steven R Feldman; Robert S Stern; John Thomas; Tara Rolstad; David J Margolis Journal: J Am Acad Dermatol Date: 2004-11 Impact factor: 11.527
Authors: David M Pariser; Jerry Bagel; Joel M Gelfand; Neil J Korman; Christopher T Ritchlin; Bruce E Strober; Abby S Van Voorhees; Melodie Young; Sheila Rittenberg; Mark G Lebwohl; Elizabeth J Horn Journal: Arch Dermatol Date: 2007-02
Authors: N M Seminara; K Abuabara; D B Shin; S M Langan; S E Kimmel; D Margolis; A B Troxel; J M Gelfand Journal: Br J Dermatol Date: 2011-02-03 Impact factor: 9.302
Authors: Erica D Dommasch; Katrina Abuabara; Daniel B Shin; Josephine Nguyen; Andrea B Troxel; Joel M Gelfand Journal: J Am Acad Dermatol Date: 2011-02-18 Impact factor: 11.527