Background: Psoriasis is a chronic erythematous-squamous disease. The results of studies related with the correlation between methods used in determining disease severity are contradictory.
Aims:The aim of this cross-sectional study is to evaluate the correlation between Psoriasis Area and Severity Index (PASI) and body surface area (BSA) involvement which are used to determine psoriasis severity and which are evaluated by the physician and Dermatology Life Quality Index (DLQI) and Psoriasis Disability Index (PDI) which are evaluated by the patients.Methods: Demographic data, PASI, BSA, DLQI, and PDI values of the patients were recorded. The correlation between the scales was evaluated.Results: 51 patients, 11 female (21.6%) and 40 male (78.4%), were included in the study. Average age was found as 44.76 ± 11.14, while average disease duration