| Number of samples analyzed patients/controls | 10:15 |
| Age at enrolment [median (range) years] | 13.4 (0 - 26) |
| Age at onset [median (range) years] | 4.3 (0 - 12) |
| Disease duration [median (range) years] | 4.7 (1 - 11) |
| Disease activity | |
| No or low activity [n] | 9 |
| High activity/flare [n] | 1 |
| Leukocytes (/nl) | 7.94 (5.2 - 12.0) |
| ESR (mm/h) | 84 (3 - 92) |
| CRP (mg/l) | 18.5 (1 - 68) |
| IL-2R (U/ml) | 674.3 (435 - 1006) |
| CH-50 (U/ml) | 59.6 (42 - 85) |
| Male/female | 4:6 |
| HLA B27 positive | 1 |
| ANA positive | 5 |
| Patients on | |
| DMARDS | 2 |
| NSAIDS | 8 |
| Steroids | 0 |