PT  - JOURNAL ARTICLE
AU  - PETER P. CHEUNG
AU  - SIMON PATERNOTTE
AU  - VINCENT BURKI
AU  - ANNE DURNEZ
AU  - MURIEL ELHAI
AU  - ISABELLE FABREGUET
AU  - EUGENIE KOUMAKIS
AU  - MAGALI MEYER
AU  - JUDITH PAYET
AU  - FANNY ROURE
AU  - MAXIME DOUGADOS
AU  - LAURE GOSSEC
TI  - Performance of the Assessment in Spondyloarthritis International Society Classification for Axial and Peripheral Spondyloarthritis in an Established Clinical Cohort: Comparison with Criteria Sets of Amor and the European Spondylarthropathy Study Group
AID  - 10.3899/jrheum.111088
DP  - 2012 Apr 01
TA  - The Journal of Rheumatology
PG  - 816--821
VI  - 39
IP  - 4
4099  - http://www.jrheum.org/content/39/4/816.short
4100  - http://www.jrheum.org/content/39/4/816.full
SO  - J Rheumatol2012 Apr 01; 39
AB  - Objective. To evaluate the performance of the Assessment in Spondyloarthritis International Society (ASAS) criteria (axial or peripheral) against the Amor and European Spondylarthropathy Study Group criteria in established spondyloarthritis (SpA). Methods. Rheumatologist-diagnosed patients with SpA were retrospectively classified according to the different criteria sets. Clinical characteristics of patients fulfilling all 3 criteria were compared with those who did not, by nonparametric statistics. Results. ASAS classified 90% of the 231 patients, with 169 (73%) fulfilling all 3 criteria sets. Multivariate analysis showed the 62 patients not fulfilling all criteria sets were older at symptom onset (p < 0.001) and less likely to have inflammatory back pain (p < 0.001), peripheral arthritis (p < 0.001), or elevated C-reactive protein levels (p = 0.034). Conclusion. ASAS criteria can be used in established disease.