Juvenile idiopathic arthritis (JIA) is the most common chronic rheumatic illness in children and is a very important cause of short-and long-term morbidity and disability. 1 Worldwide incidence of JIA ranges from 0.8 to 22.6 per 100 000 children per year with the prevalence ranging from 7 to 401 per 100 000 children. 2 The exact incidence and prevalence of JIA data is not available in our country (Bangladesh). A pilot study carried out in a semi-urban area of Bangladesh showed prevalence of JIA as 60.5 per 100 000. 3