PT  - JOURNAL ARTICLE
AU  - D’ANGELO, SALVATORE
AU  - MENNILLO, GIANNA ANGELA
AU  - CUTRO, MARIA STEFANIA
AU  - LECCESE, PIETRO
AU  - NIGRO, ANGELO
AU  - PADULA, ANGELA
AU  - OLIVIERI, IGNAZIO
TI  - Sensitivity of the Classification of Psoriatic Arthritis Criteria in Early Psoriatic Arthritis
AID  - 10.3899/jrheum.080596
DP  - 2009 Feb 01
TA  - The Journal of Rheumatology
PG  - 368--370
VI  - 36
IP  - 2
4099  - http://www.jrheum.org/content/36/2/368.short
4100  - http://www.jrheum.org/content/36/2/368.full
SO  - J Rheumatol2009 Feb 01; 36
AB  - Objective. To determine the sensitivity of the CASPAR criteria in patients with early psoriatic arthritis (PsA). Methods. Consecutive patients with a clinical diagnosis of PsA and a disease duration < 12 months were enrolled for study. The proportion of patients meeting the criteria (i.e., the sensitivity) was determined. Results. Forty-four patients with early PsA (23 women, 21 men; mean age 51 yrs, range 16–90) were enrolled. Mean disease duration (± SD) was 15.8 ± 14.3 weeks (range 0.1–50.9 wks). Thirty-four patients satisfied the criteria at the first visit (sensitivity 77.3%). Most patients met the skin and laboratory criterion, i.e., they were rheumatoid factor-negative, while only 2 satisfied the radiologic criterion. Conclusion. Our findings suggest a less satisfactory performance of the CASPAR criteria when applied in early PsA. Lower sensitivity could mainly depend on the small proportion of patients fulfilling the radiologic criterion.