Psoriasis Lianjun Chen Huashan Hospita
Psoriasis Lianjun Chen Huashan Hospital
WHAT IS PSORIASIS? A common, life -long, genetic, autoimmune skin disease Characterized by well circumscribed areas of thick, red, scaly skin From the greek“ soros” meaning"rough scabby? Term first used( along with“ lepra”)by Hippocrates(460-377 B. C )in Corpus Hippocraticum von Hebra first to distinguish psoriasis from leprosy in 1841
WHAT IS PSORIASIS? A common, life-long, genetic, autoimmune skin disease Characterized by well circumscribed areas of thick, red, scaly skin From the Greek “psoros” meaning “rough, scabby” Term first used (along with “lepra”) by Hippocrates (460-377 B.C.) in Corpus Hippocraticum von Hebra first to distinguish psoriasis from leprosy in 1841
Morbidity rate Natural population: 0. 1%03%. Estimated 1.25 hundred million patients in the world China(1984):0.123% a European country: 1. 5%0-3% ■ America:2.6% ■ Hongkong0.3%0(2005
Morbidity rate Natural population: 0.1%~3%. Estimated 1.25 hundred million patients in the world China(1984): 0.123%. ◼ European country: 1.5%-3%. ◼ America: 2.6%. ◼ Hongkong:0.3%(2005 )
Prevalence Equal frequency in males and females May occur at any age from infancy to he 10th decade of life First signs of psoriasis Females mean age of 27 vears Males mean age of 29 years
Prevalence Equal frequency in males and females May occur at any age from infancy to the 10th decade of life First signs of psoriasis – Females mean age of 27 years – Males mean age of 29 years
Prevalence Two Peaks of occurrence One at 20-30 years One at 50-60 years Psoriasis in children Low -between 0.5 and 1.1% in children 16 years old and younger Mean age of onset- between 8 and 12.5 ears
Prevalence Two Peaks of Occurrence – One at 20-30 years – One at 50-60 years Psoriasis in children – Low – between 0.5 and 1.1% in children 16 years old and younger – Mean age of onset - between 8 and 12.5 years