Table 4.
Association between baseline disease characteristicsa and symptoms duration at first PRh assessment (oligoarthritis only)
| JIA: oligoarthritis only (n = 233) | |||||||
|---|---|---|---|---|---|---|---|
| Symptoms ≤4 months 107 | Symptoms >4 months 126 | P-value | Symptoms > 6 months 92 | P-value (compared with ≤4 months) | Symptoms >12 months 46 | P-value compared with ≤4 months | |
| Age, (yrs) | 4.3 (2.4, 8.3) | 6.1 (2.7, 10.2) | 0.03 | 6.1 (2.5, 10.3) | 0.05 | 6.1 (3.0, 10.2) | NS |
| Female, n (%) | 73 (68) | 81 (64) | NS | 58 (63) | NS | 28 (61) | NS |
| Active joint count | 1 (1, 2) | 1 (1, 2) | NS | 1 (1, 2) | NS | 1 (1, 2) | NS |
| Limited joint count | 1 (1, 1) | 1 (0, 2) | NS | 1 (1, 2) | NS | 1 (1, 2) | NS |
| CHAQ (0–3) | 0.75 (0.13, 1.25) | 0.5 (0, 1.13) | 0.04 | 0.5 (0, 1.0) | 0.02 | 0.25 (0, 0.75) | 0.0046 |
| Physician global assessment (0–100) | 29 (19, 52) | 27 (10, 43) | NS | 30 (10, 53) | NS | 33 (21, 62) | NS |
| Parent global assessment (0–100) | 12 (4, 43) | 15 (4, 39) | NS | 15 (2, 40) | NS | 13 (2, 40) | NS |
| Pain (0–100) | 30 (5, 55) | 26 (10, 50) | NS | 30 (10, 50) | NS | 30 (6, 48) | NS |
| ESR (mm/h)b | 25 (10, 42) | 10 (5, 22) | <0.001 | 10 (4, 26) | 0.0003 | 7 (4, 22) | <0.001 |
| ESR ≤10 mm/h, n (%) | 20 (26) | 46 (48) | 0.003 | 35 (52) | 0.003 | 19 (56) | 0.002 |
| CRP (mg/l) | 7 (1,16) | 7 (0,16) | NS | 7 (0, 12) | NS | 7 (0, 10) | NS |
| Acute uveitis, n (%) | 3 (2.9) | 1 (0.8) | NS | 1 (1.1) | NS | 1 (2.2) | NS |
| Chronic uveitis, n (%) | 2 (1.9) | 3 (2.4) | NS | 2 (2.2) | NS | 1 (2.2) | NS |
aResults are presented as median (interquartile range) unless stated otherwise. bESR available in 389 children only (174 with oligoarthritis).