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Evaluating the Persian versions of two psoriatic arthritis screening questionnaires Early Arthritis for Psoriatic Patients questionnaire (EARP) and Psoriasis Epidemiology Screening Tool (PEST) in Iranian psoriatic patients.

PMID: 32927935 (view PubMed database entry)
DOI: 10.3906/sag-2006-372 (read at publisher's website )

Vahide Lajevardi, Seyed Zahra Ghodsi, Mahdieh Shafiei, Amir Teimourpour, Ifa Etesami,

BACKGROUND/AIM:The majority of psoriatic arthritis (PsA) patients present at dermatology clinics with cutaneous psoriasis up to 10 years prior to arthritis onset, therefore applying a suitable screening tool to detect PsA early is essential for dermatologists. This study aimed to validate and evaluate the Persian version of two PsA screening questionnaires, Early Arthritis for Psoriatic Patients questionnaire (EARP) and Psoriasis Epidemiology Screening Tool (PEST) in Iranian psoriatic patients. METHODS:In this cross-sectional study, psoriatic patients who presented to the dermatology clinic without a previously established PsA were asked to fill the Persian version of EARP and PEST. PsA was diagnosed by a rheumatologist based on fulfillment of the classification criteria for psoriatic arthritis. Receiver operator characteristic (ROC) curves, sensitivity, and specificity were calculated for both questionnaires. RESULTS:A total of 75 patients (33 (44%) female, 42 (56%) male with a mean age of 43.2 ± 14.6) were enrolled in this study. The prevalence of PsA based on rheumatologist diagnosis was 25.3% (19 patients had PsA). The ROC curve analysis of EARP and PEST were (0.949, 95% CI 0.897-1) and (0.922, 95% CI 0.834-1). The sensitivity of EARP and PEST questionnaires were 94.7% and 58% respectively, while specificities were 78.6% and 96.4% respectively with a cutoff of 3. CONCLUSION:The Persian version of both questionnaires showed good diagnostic performances. We suggest EARP as a screening tool for PsA in the dermatology clinics, due to much higher sensitivity with acceptable specificity compared to PEST.

Turk J Med Sci (Turkish journal of medical sciences)
[2020, :]

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