We recorded insignificant relationships between YKL-40 and BMI (r = 0.34, p = 0.206), CRP (r = 0.26, p = 0.081), ESR (r = 0.06, p = 0.568) in patients with the treated JIA whose clinical condition had stabilized (inactive disease) (Table 2). Here, CHI3L1 is linked to juvenile idiopathic arthritis.