Table 3 Clinical characteristics in cohort 2: non-systemic juvenile idiopathic arthritis patients with an incomplete/complete registration of 10-joint count juvenile arthritis disease activity score (JADAS10) and clinical JADAS10 (cJADAS10) parameters at the recorded latest visit between January 2020 and September 2021 in The Finnish Rheumatology Quality Register
JADAS10 | cJADAS10 | |||||
|---|---|---|---|---|---|---|
Incomplete dataset (N = 560) | Complete dataset (N = 640) | Incomplete dataset (N = 246) | Complete dataset (N = 954) | P | ||
Females n (%) | 372 (66%) | 440 (66%) | 0.426 | 168 (68%) | 644 (68%) | 0.879 |
Age in years, median (Q1,Q3) | 11.7 (8.4,14.2) | 11.3 (7.8,14.1) | 0.202 | 11.5 (8.2,14.4) | 11.4 (7.3,14.1) | 0.480 |
Disease duration in years, median (Q1,Q3) | 4.6 (2.3,8.2) | 4.3 (1.9,7.9) | 0.063 | 4.2 (2.3, 8.0) | 4.4 (2.1,8.0) | 0.697 |
Antinuclear antibodies positive n (% of patients with registered results) | 202 (39%) | 276 (45%) | 0.047 | 97 (43%) | 381 (42%) | 0.706 |
HLAB27 positive n (% of patients with registered results) | 97 (20%) | 121 (21%) | 0.703 | 43 (20%) | 175 (21%) | 0.850 |
Subcategories of JIA | ||||||
Oligoarthritis, persisted n (%) | 293 (52%) | 318 (50%) | 0.658* | 113 (46%) | 498 (52%) | 0.100* |
Oligoarthritis, extended n (%) | 53 (9%) | 63 (10%) | 31 (13%) | 85 (9%) | ||
Polyarthritis, Rheumatoid factor-negative n (%) | 214 (38%) | 259 (40%) | 102 (41%) | 371 (39%) | ||