From: T-cell activation without proliferation in juvenile idiopathic arthritis
Subclass of arthritis | No. of patients | F:M | Mean age of onset (range) (years) | Mean duration of disease (range) (years) | B27+ (no.) | ANA+ (no.) |
---|---|---|---|---|---|---|
Oligoarthritis | 8 | 5:3 | 4.5 (1–13.8) | 4.1 (0.3–8) | 1 | 4 |
Extended oligoarthritis | 2 | 1:1 | 6.8 (4.5–9) | 3.6 (1.2–6) | 0 | 0 |
Systemic arthritis | 2 | 0:2 | 6 (2.5–9.6) | 6.7 (0.4–13) | 0 | 0 |
Psoriatic arthritis | 8 | 4:4 | 7.6 (1.1–10.8) | 5.6 (0.5–14.2) | 2 | 6 |
Enthesitis-related arthritis | 4 | 1:3 | 11.3 (7.7–12.7) | 1.7 (0.1–4) | 3 | 1 |
Polyarthritis RF- | 5 | 2:3 | 6.8 (2–13) | 1.9 (0.4–4.5) | 1 | 3 |
Polyarthritis RF+ | 1 | 1:0 | 13.9 | 1 | 0 | 0 |
Other | 1 | 0:1 | 12.9 | 0.2 | 0 | 0 |