Table 1 Characteristics of JIA patients participating in the two periods of surveillance for acute respiratory infections and in the phase of vaccination against influenza virus
SV 1 | SV 2 | Vaccination | |
|---|---|---|---|
Patients (n) | 61 | 63 | 44 |
Age, mean (years) | 10.7 | 10.9 | 11.0 |
ILAR categories n (%) | |||
Oligoarthritis extended | 8 (13.1) | 12 (19) | 9 (20.4) |
Oligoarthritis persistent | 12 (19.6) | 11 (17.4) | 11 (25) |
Polyarticular RF - | 20 (32.7) | 19 (30.1) | 12 (27.3) |
Polyarticular RF+ | 4 (6.5) | 5 (7.9) | 4 (9) |
Systemic | 13 (21.3) | 13 (20.6) | 7 (16) |
Undifferentiated arthritis | 4 (6.5) | 3 (4.8) | 1 (2.3) |
Use of immunosuppressant, DMARDS or anti-TNF drugs, n (%) | 34 (55.7) | 43 (68.2) | 31(70) |
Use of corticosteroids, n (%) | 5 (8.2) | 5 (7.9) | 6 (13.6) |
(mean daily dose corticosteroids: mg/kg/day) | 0.45 (0.05-1) | 0.34 (0.1-0.5) | 0.3 (0.1-0.6) |
Active disease n (%) | 21 (34.4) | 25 (39.6) | 25(57) |