ReportsPsoriasis of early and late onset: A clinical and epidemiologic study from Spain☆,☆☆,★
Section snippets
Patients and methods
An observational, analytic, cross-sectional, multicenter study evaluating the clinical and epidemiologic features of psoriasis in Spain was carried out from January 1999 to November 1999. A total of 179 dermatologists working in different regions of Spain participated in this study. These dermatologists were selected on the basis of geographic distribution and demographic data for the country and were distributed proportionally to the population of the different regions of Spain to obtain a
Results
A total of 1774 forms from patients with psoriasis (939 men and 829 women) were included in the study; in 6 individuals the sex was not specified. The vast majority of patients (99.5%) were white. One thousand ninety-two patients were included in group 1 (psoriasis of early onset) and 662 patients in group 2 (psoriasis of late onset). In 20 patients, the age at onset was not specified, and these patients were not included when the characteristics of groups 1 and 2 were compared. According to
Discussion
This study documents details of 1774 patients with psoriasis representative of the full spectrum of the general population in Spain. In our population, the disease started at a wide range of ages, with a mean age at onset of 29.1 years and with a modal distribution in the second decade of life. This age at onset is slightly higher than those reported in other western European countries where several studies based on the general population have also shown a higher prevalence.6, 7, 8 It seems
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Funding sources: A grant from Farmacusí S.A./Leo Pharmaceutical Products A.S.
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Conflict of interest: None.
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Reprint requests: Carlos Ferrándiz, MD, Department of Dermatology, Hospital Universitario Germans Trias i Pujol, Carretera de Canyet s/n, 08916 Badalona, Spain.