From: Evaluation of the power of six clustering features in identifying a homogeneous disease subset in juvenile idiopathic arthritis (JIA)
ANA Pos
ANA Neg
Mean onset age (years)
3.9
6.8
Patients with onset age < 6 years (%)
81.3
45.9
Females (%)
80.0
68.8
Asymmetric arthritis at 6 months (%)
78.4
63.2
Iridocyclitis (%)
25.4
1.9