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P77
Incidence of psoriasis in Norway
Author(s) -
Selvaag Edgar,
Loeb M
Publication year - 2004
Publication title -
contact dermatitis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 96
eISSN - 1600-0536
pISSN - 0105-1873
DOI - 10.1111/j.0105-1873.2004.00309hg.x
Subject(s) - psoriasis , atopic dermatitis , medicine , dermatology , incidence (geometry) , disease , pathology , physics , optics
Investigations in several western countries, especially european, have shown an increase in the frequency of psoriasis. To investigate these trends in Norway, the following procedure was followed. Using four standardized interview‐reports the development and the frequency of atopic dermatitis was determined. The questionnaires were conducted in the years 1968, 1975, 1985 and 1995. The results were registred electronically, and made available on the Statistical Package for the Social Sciences (SPSS) in Windows version. In 1968 420 out of 11101 persons suffered from a skin disease, in 1975 the number had increased to 690 out of 11014 persons. These numbers still increased; in 1985 1136 out of 10576 and in 1995 1026 out of 10248 said to suffer from a skin disease. The diagnosis psoriasis was reported by 34 persons in 1968 (8% of all skin disease), increased to 97 in 1975 (14.1%), to 149 in 1985 (13.1%), and finally to 284 in 1995 (26.7%). In all, the infectious skin diseases decreased in number, whereas inflammatory skin diseases, such as psoriasis but also atopic dermatitis increased. Connections to air pollution, indoor environment, especially smoking are at present under investigation. These results indicate that psoriasis is among the most frequent skin diseases in Norway, comparable to other western industrialized countries.