Clinical characteristics of JIA patients with or without underlying IBD. Values are n (%) or mean (SD, range).
| Characteristics | IBD, n = 7 | Non-IBD, n = 106 |
|---|---|---|
| Age, yrs | 11.2 (2.5, 8.3–16.4) | 9.0 (5.0, 1.7–19.3) |
| No. females | 5 (71) | 83 (78) |
| Oligoarticular JIA | 2 (29) | 74 (70) |
| Polyarticular JIA | 0 (0) | 27 (25) |
| Enthesitis-related arthritis | 4 (57) | 2 (2) |
| Psoriatic arthritis | 0 (0) | 3 (3) |
| Undifferentiated arthritis | 1 (14) | 0 (0) |
| Presence of ANA | 1 (14) | 51 (48) |
| Duration of JIA, mos | 19.4 (23.7, 0–52) | 40.11 (37.44, 2–125) |
| Presence of GI symptoms | 3 (43) | 3 (3)* |
| Presence of growth failure | 3 (43) | 0 (0)* |
| ESR, mm/h | 66.71 (23.91, 53–88) | 25.88 (13.9, 2–120)* |
| CRP, mg/dl | 3.03 (1.42, 1.2–5.76) | 0.42 (0.79, 0–4.51)* |
| White blood count, n/mm3 | 9332 (3853; 5570–17,010) | 7738 (2201; 4260–19,160) |
| Platelet count, n/mm3 | 415,285 (74,365; 283,000–477,000) | 314,351 (86,020; 163,000–604,000)† |
| Hemoglobin, g/dl | 11.3 (1.3, 9.5–13) | 12.4 (1.1, 9.4–15.3)† |
| IgG levels, mg/dl | 1419 (431, 1002–1983) | 1147 (386, 546–2235) |
| IgA levels, mg/dl | 326 (130, 189–500) | 134 (85, 5–415)* |