BTG3 and Arthritis: Therefore, the data from the prospective Nationwide Paediatric Rheumatologic Database (NPRD) on children and adolescents with juvenile rheumatic diseases and with additional uveitis documentation in Germany have now been analyzed concerning the characteristics of JIA-associated uveitis and ANA-positive uveitis without associated arthritis (ANA-positive uveitis) in order to examine whether the disease characteristics and courses are similar.