CRP and iridocyclitis: The demographic (age and sex) and main clinical features of patients and control subjects, various laboratory parameters and known markers of disease activity such as erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), and anti-nuclear antibodies (ANA), the number and type of active joints at onset, therapeutic regimens administered after diagnosis, disease oligoarticular or polyarticular course, and iridocyclitis development within a 2 years follow-up period are reported in Table 1.