| Children aged 4-7 years (n = 20) | Youth aged 8-18 years (n = 77) | ||
---|---|---|---|---|
Characteristic | M ± SD | n (%) | M ± SD | n (%) |
Age (years) | 5.9 ± 0.9 |  | 13.5 ± 3.1 |  |
Gender | Â | Â | Â | Â |
   Female |  | 12 (60.0) |  | 49 (63.6) |
   Male |  | 8 (40.0) |  | 28 (36.4) |
Primary Diagnosis | Â | Â | Â | Â |
   Juvenile idiopathic arthritis |  |  |  |  |
Enthesitis related | Â | 0 (0.0) | Â | 10 (13.0) |
Oligoarthritis | Â | 3 (15.0) | Â | 6 (7.8) |
Polyarthritis (RF negative) | Â | 3 (15.0) | Â | 13 (16.9) |
Polyarthritis (RF positive) | Â | 1 (5.0) | Â | 4 (5.2) |
Psoriatic | Â | 1 (5.0) | Â | 3 (3.9) |
Systemic | Â | 0 (0.0) | Â | 6 (7.8) |
Unknown subtype | Â | 3 (15.0) | Â | 3 (3.9) |
   Juvenile dermatomyositis |  | 2 (10.0) |  | 5 (6.5) |
   Systemic lupus erythematosus |  | 0 (0.0) |  | 4 (5.2) |
   Other |  | 2 (10.0) |  | 16 (20.8) |
   Not yet diagnosed |  | 1 (5.0) |  | 7 (9.1) |
Visit type | Â | Â | Â | Â |
   Follow-up |  | 17 (85.0) |  | 63 (81.8) |
   New patient |  | 3 (15.0) |  | 14 (18.2) |
Duration of pain (years) | 2.1 ± 1.6a |  | 5.3 ± 4.3 |  |
Physicians disease severity rating (10 cm VAS) | 2.1 ± 2.1b |  | 2.4 ± 1.8c |  |