Who is affected by psoriasis

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Who is affected by psoriasis

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Psoriasis is more common in adults than in children. It appears to be slightly more common in women than in men.¹

Psoriasis affects:

1% to 3% of people throughout the world.²
About 2% to 3% of people in the United States. Every year 150,000 to 260,000 people in the U.S. are newly diagnosed with psoriasis.¹
Some cultures more than others.³ For example, it is common in Japanese people but not in native North Americans or native South Americans. It is uncommon among blacks in tropical areas, but it is seen more often among blacks in temperate areas, such as in the United States and Europe, where the year-round climate is moderate.

References

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Citations
Lee CS, Koo J (2007). Papulosquamous disorders. In RE Rakel, ET Bope, eds., Conn's Current Therapy, pp. 931–936. Philadelphia: Elsevier Saunders.
Habif TP, et al. (2005). Psoriasis and other papulosquamous diseases. In Skin Disease: Diagnosis and Treatment, pp. 106–115. Philadelphia: Elsevier Mosby.
Abel E, Lebwohl M (2005). Psoriasis. In DC Dale, DD Federman, eds., ACP Medicine, section 2, chap. 3. New York: WebMD.

Credits

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Author	Maria G. Essig, MS, ELS
Editor	Susan Van Houten, RN, BSN, MBA
Associate Editor	Pat Truman, MATC
Primary Medical Reviewer	Kathleen Romito, MD - Family Medicine
Specialist Medical Reviewer	Alexander H. Murray, MD, FRCPC - Dermatology
Last Updated	December 10, 2007

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Last updated:	December 10, 2007
Author:	Maria G. Essig, MS, ELS
Reviewed By:	Kathleen Romito, MD - Family Medicine, Alexander H. Murray, MD, FRCPC - Dermatology
Editors:	Susan Van Houten, RN, BSN, MBA, Pat Truman, MATC

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