TABLE 1.
General characteristics of the study population according to cohort.
| Timing of uveitis | Cohort 1 | Cohort 2 | p‐value |
|---|---|---|---|
| <2010 | ≥2010 | ||
| Total number of patients | 61 | 82 | |
| Total number of eyes | 109 | 133 | |
| Male, n (%) | 15 (25) | 19 (23) | 1.00 |
| Bilateral, n (%) | 48 (78) | 51 (62) | 0.05 |
| ANA seropositive, n (%) | 54 (89) | 64 (78) | 0.26 |
| Age of onset JIA, median (IQR) | 3.3 (2.0–5.0) | 3.0 (3.3–7.4) | 0.82 |
| Age of onset uveitis, median (IQR) | 4.2 (3.1–6.2) | 5.2 (3.8–7.6) | 0.03 |
| Uveitis before JIA, n (%) | 15 (25) | 9 (11) | 0.05 |
| Time between diagnosis of arthritis and uveitis, median in years (IQR) | 1.3 (0.3–1.0) | 1.0 (0.4–2.0) | 0.27 |
| Time between diagnosis of uveitis and initial visit at the tertiary centre, median in years (IQR) | 2.2 (0.7–5.5) | 0.9 (0.1–2.2) | 8.08 × 10−4 |
| Follow‐up time, median in years (IQR) | 10 (9.1–10) | 5.1 (2.6–6.9) | 8.90 × 10−14 |
ANA = antinuclear antibodies, IQR = interquartile range, JIA = Juvenile idiopathic arthritis.