Table 1 Patient characteristics (N = 65)
Age, median (range) | 12.6 (2.4–17.8) |
IQR | 9.7–15.9 |
Sex (number and proportion) | |
 Male | 19 (29%) |
 Female | 46 (71%) |
Diagnosis | |
 Oligo articular JIA, persistent | 7 (11%) |
 Oligo articular JIA, extended | 6 (9%) |
 Polyarticular JIA, RF negative | 29 (45%) |
 Polyarticular JIA, RF positive | 9 (14%) |
 Enthesitis-related JIA | 10 (15%) |
 Psoriatic arthritis | 3 (5%) |
 Undifferentiated | 1 (2%) |
Non-biologic DMARD usea | |
 Methotrexate | 57 (78%) |
 Leflunomide | 2 (3%) |
 Azathioprine | 4 (6%) |
 Cellcept | 1 (1%) |
 None | 10 (14%) |