OBJECTIVE: To accurately estimate the prevalence of and the factors associated with uveitis in spondylarthritis (SpA) patients in France.
METHODS: In an observational survey of SpA patients (diagnosis confirmed by the European Spondylarthropathy Study Group and/or Amor's criteria) consulting their rheumatologist for routine followup, we collected information regarding present/past history of uveitis, as well as detailed characteristics of the disease. Factors independently associated with uveitis were determined.
RESULTS: From September 2008 to January 2009, 202 rheumatologists participated in the survey and recruited 902 patients (61% men) with a mean ± SD age of 45.3 ± 13.4 years and a mean ± SD disease duration of 10.4 ± 9.6 years. The SpA diagnoses were ankylosing spondylitis (71%), psoriatic arthritis (18%), or other SpA (11%). The HLA-B27 positivity rate was 76%. Uveitis prevalence was 32.2% (95% confidence interval [95% CI] 29.1-35.3%) since psoriasis and inflammatory bowel disease were 22.3% (95% CI 19.5-25.0%) and 8.6% (95% CI 6.7-10.5%), respectively. Recurrence of uveitis occurred in 52.3% and complications occurred in 11.7% of patients. Factors independently associated with uveitis were HLA-B27 positivity (adjusted odds ratio [OR(adj) ] 2.97 [95% CI 1.83-4.81], P < 0.0001) and disease duration (OR(adj) 1.28 [95% CI 1.16-1.41], P < 0.0001 for ≥10 years).
CONCLUSION: Results indicate that uveitis is the most common extraarticular feature of SpA, occurring preferentially in HLA-B27-positive patients over the entire course of the disease.