Introduction: Juvenile idiopathic arthritis is one of the most common rheumatic diseases of childhood and it is a heterogeneous group of disorders which cause long term disability. Differences in clinical findings of the disease have been reported in many publications from different countries.
Material and Methods: In this study, the medical files of the patients who were diagnosed with juvenile idiopathic arthritis and followed up at least one year were evaluated retrospectively. It was aimed to classify and evaluate the juvenile idiopathic arthritis patients according to International League of Associations for Rheumatology classification and to compare clinical and laboratory features of each subgroup.
Results: Seventy-five patients were enrolled in the study. The mean age of the patients were 11.0 (7.0–14.0) years and the mean age of the diagnosis of patients were 9.0 (5.0–12.0) years. The ratio of girl/boy was 1.02. Oligoarticular type of juvenile idiopathic arthritis (28 patients, 37.3%) was the most common subgroup. The most common antinuclear antibody positivity was observed in oligoarticular subtype (8 patients, 28.5%) while the most common rheumatoid factor positivity was obtained in rheumatoid factor positive subtype. The anterior uveitis was observed in 6.6% among all patients.
Conclusions: In this study, we determined that the oligoarticular onset of juvenile idiopathic arthritis is the most common subtype and we observed with equal frequency in girls and boys in our region. We also observed that the positivity of antinuclear antibody, rheumatoid factor and uveitis were 18.6%, 9.3%, and 6.6%, respectively.
Key Words: Juvenile Idiopathic Arthritis; International League of Associations for Rheumatology; Children.
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