BACKGROUND Psoriasis is a chronic inflammatory disease of the skin that affects patients of
all ages andboth genders. The impact of the disease on quality of life is greater
among patients with moderate to severe psoriasis. OBJECTIVE to establish a correlation between the psoriasis area and severity index (PASI)
and theDermatology Life Quality Index (DLQI) based on a quality of life
questionnaire adapted to the Brazilian contextfor patients with plaque psoriasis
before and after systemic treatment. METHODSThis was a cross-sectional, descriptive study of psoriasis patients who did not
undergo treatment or who manifested clinical activity of the disease. Patients
were evaluated according to the PASI and the quality of life questionnaire adapted
to theBrazilian context before and 60 days after systemic treatment. RESULTS Thirty-five patients participated in thestudy. Twenty-six were men, with a mean
age of 46 years. There was no correlation between the PASI and thequality of life
questionnaire adapted to the Brazilian context, but there was a correlation
between the PASI andsome items of the quality of life questionnaire adapted to the
Brazilian context, such as jobs involving public contact. CONCLUSIONThe non-correlation between the PASI and the quality of life questionnaire adapted
to the Brazilian context in this work may be associated with a history of chronic
disease, which implies greater acceptance of the illness, or may be related to the
low income and social status of the patients studied. The correlationobserved
among patients with careers involving public contact suggests that some
professions are more impacted by the disease. It may be necessary to adapt the
quality of life questionnaire to patients with a low income andcultural and social
limitations. The small sample size (n=35 patients) and the short follow-up period
of 60 dayswere some of the limitations of this work.