Fig. 1

Level of regulatory T cells (as % of total CD3+CD4+) according to JIA category, represented as mean and 95% confidence interval. ERA: enthesitis-related arthritis; Oligo Ext: oligoarticular-extended arthritis; Oligo Pers: oligoarticular-persistent arthritis; Psor: psoriatic arthritis; RF- Poly: rheumatoid factor-negative polyarticular arthritis; RF + Poly: rheumatoid factor-positive polyarticular arthritis; Syst: systematic arthritis; Undiff: undifferentiated arthritis