BTG3 and uveitis: In comparison with oligoJIA, the most significant features of monoJIA were later age at onset (6.1 vs 4.7 years, p=0.002), lower female prevalence (70.3 vs 83.4%, p=0.004), higher frequency of BJH (77.7 vs 62.9%, p=0.006), lower frequency of uveitis (14.4 vs 34.1%, p=0.001) and ANA+ (68.6 vs 89.5%, p<0.001) and better long-term outcome (p<0.001).