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Updated: Dec 2, 2025
Author Spotlight: Self-Assessment Protocol for Predicting Psoriatic Arthritis in Psoriasis Patients
Published on: March 1, 2024
Evaluation of the correlation between scales determining disease severity in patients with moderate-severe chronic
Mustafa Gundogdu1, Nihal Kundakci2
1Dermatology and Venereology Department, Ordu State Hospital, Kars, Turkey.
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 was found as 20.74 ± 7.94. Average PASI, BSA, DLQI and PDI values were found as 17.27 ± 7.49, 33.90 ± 13.87, 15.09 ± 7.48, 23.58 ± 10.20, respectively. In the evaluation of the correlation between the scales, while PASI was found to be correlated with BSA involvement (r = 0.780 P = .000), DLQI and PDI were not found to be correlated. On the other hand, correlation was also found between DLQI and PDI (r = 0.641 P = .000).
Conclusion:
There is no correlation between physical assessment methods (PASI, BSA) and quality of life scales (DLQI, PDI).
