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Updated: Dec 31, 2025
Author Spotlight: Self-Assessment Protocol for Predicting Psoriatic Arthritis in Psoriasis Patients
Published on: March 1, 2024
Psoriasis Symptom Inventory (PSI) as a patient-reported outcome in mild psoriasis: Real life data from a large
Sibel Zehra Aydın1, Gezmiş Kimyon2, Cem Özişler3
1Division of Rheumatology, Department of Internal Medicine, University of Ottawa School of Medicine, Ottawa Hospital Research Institute, Ottawa, ON, Canada.
Objective:
Our aim is to test the validity of the Psoriasis Symptom Inventory (PSI), a patient-reported outcome, to assess the psoriasis severity within the scope of rheumatology.
Methods:
Within the PsA international database (PSART-ID), 571 patients had PSI, while 322 of these also showed body surface area (BSA). Correlations between PSI, BSA, and other patient- and physician-reported outcomes were investigated.
Results:
There was a good correlation between PSI and BSA (r=0.546, p<0.001), which was even higher for mild psoriasis (BSA<3 (n=164): r=0.608, p<0.001). PSI significantly correlated with fatigue, pain, and patient and physician global parameters (p<0.001).
Conclusion:
PSI has a good correlation with other patient- and physician-reported outcomes, and our findings support its use in rheumatology practice.
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