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Risk factors for gouty dactylitis
R Andracco1, G Zampogna, M Parodi
1Clinica Reumatologica, Dipartimento di Medicina Interna, Università di Genova, Italy.
Objective:
To investigate the risk factors associated with dactylitis in gout.
Methods:
The questionnaires of 73 consecutive gouty patients, diagnosed according to the ACR criteria, were reviewed. They were consecutively screened for the presence of dactylitis.
Results:
Seven out of 73 (9.6%) patients showed dactylitis. They had (1) longer disease duration, (2) a higher number of involved joints, (3) higher serum uric acid concentration, (4) more tophi, (5) higher ESR, and (6) a higher number of ACR criteria besides crystal identification, than the others. By logistic regression, renal stones (OR 13.3, 95% CI 1.1-158.3), upper extremity involvement (OR 4.9, 95% CI 1.4-16.6), number of ACR criteria (OR 1.9, 95% CI 1.1-3.3), and ESR (OR 1.02, 95% CI 1-1.04), significantly predicted dactylitis.
Conclusions:
Dactylitis is a feature of gout representing an indicator of disease severity.
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