The prevalence of previously diagnosed and undiagnosed psoriasis in US adults: Results from NHANES 2003-2004 - 08/08/11
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.
Le texte complet de cet article est disponible en PDF.Abbreviations used : BSA, CI, MEC, NHANES, OR
Plan
Supported in part by a National Research Service Award from the National Institute of Health (to S.K.K.) and a grant K23AR051125 from the National Institutes of Health/National Institute of Arthritis, Musculoskeletal, and Skin Diseases (to J.M.G.). |
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Conflicts of interest: None declared. |
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Reprints not available from the authors. |
Vol 60 - N° 2
P. 218-224 - février 2009 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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