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Japanese version of the early psoriatic arthritis screening questionnaire ( EARP )
Author(s) -
Maejima Hideki,
Katayama Chieko,
Taniguchi Tomonori,
Aki Ryouichi,
Nishiyama Hiromi,
Yanagita Kenogo,
Sato Yuichi,
Tinazzi Ilaria,
Watarai Akira,
Amoh Yasuyuki
Publication year - 2016
Publication title -
the journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 65
eISSN - 1346-8138
pISSN - 0385-2407
DOI - 10.1111/1346-8138.13092
Subject(s) - psoriatic arthritis , medicine , arthritis
The early psoriatic arthritis screening questionnaire ( EARP ) is a simple and fast method for the identification of arthritis in patients with psoriasis. We established the Japanese version of the EARP (J‐ EARP ) questionnaire, which includes 10 items with two choices for each. This study aimed to evaluate the utility of the J‐ EARP questionnaire. A total of 90 psoriasis patients, 19 psoriatic arthritis (PsA) patients and 71 psoriasis patients without joint involvement, were administered the J‐ EARP questionnaire. The diagnostic accuracy of the J‐ EARP questionnaire for the diagnosis of PsA and early‐stage PsA was compared by receiver–operator curve ( ROC ) analysis. The J‐ EARP questionnaire showed similar ROC characteristics to those of the original version of the EARP (specificity 97.2% and 91.6% and sensitivity 97.2% and 85.2%, respectively) in PsA patients using the cut‐off value of 3 for the J‐ EARP questionnaire, which was the same as that used for the original EARP questionnaire. The scores of the J‐ EARP questionnaire in early‐stage PsA patients (<1 year from onset) were significantly higher than in those of psoriasis patients, but not lower than in those of later stage (≥1 year from onset) PsA patients. The J‐ EARP questionnaire is simple and fast to administer and has been proven to be robust for the identification of PsA. The J‐ EARP questionnaire is a useful diagnostic tool for early‐stage PsA patients.