Table 1.
Baseline patient characteristics of all patients included in the study according to JIA subtype
| Control | Enthesitis related | Extended oligo | Persistent oligo | RF - poly | RF + poly | Psoriatic | All non-sJIA | sJIA | |
|---|---|---|---|---|---|---|---|---|---|
| Total (n) | 38 | 33 | 8 | 53 | 58 | 15 | 9 | 176 | 23 |
| Flow (n) | 38 | 30 | 5 | 41 | 41 | 15 | 8 | 149 | 14 |
| Expression (n) | 29 | 29 | 7 | 38 | 47 | 14 | 8 | 143 | 21 |
| Flow and expression (n) | 29 | 26 | 4 | 26 | 30 | 14 | 7 | 107 | 12 |
| Age at onset (yr) | 10.8a ± 5.3 | 12.4 ± 2.5 | 4.7 ± 4.7 | 5.5 ± 4.0 | 8.1 ± 5.0 | 10.8 ± 3.0 | 7.5 ± 4.2 | 8.2 ± 4.8 | 5.6 ± 5.0 |
| Onset to baseline (mo) | N/A | 7.1 ± 7.8 | 5.7 ± 3.3 | 4.4 ± 3.3 | 8.1 ± 8.3 | 5.8 ± 9.3 | 6.7 ± 7.5 | 6.4 ± 7.0 | 3.6 ± 5.9 |
| Female (%) | 57.8 | 15.2 | 100 | 67.9 | 75.9 | 93.3 | 66.7 | 64.2 | 34.8 |
| WBC in 109/L | N/A | 6.7 ± 2.0 | 8.2 ± 2.3 | 9.0 ± 3.0 | 8.5 ± 3.6 | 8.0 ± 2.3 | 7.6 ± 1.0 | 8.2 ± 3.0 | 18.1 ± 9.6b |
| Hgb in g/dl | N/A | 13.1 ± 0.9 | 11.8 ± 0.9 | 12.2 ± 1.1 | 12.3 ± 1.1 | 12.4 ± 1.3 | 12.5 ± 0.7 | 12.4 ± 1.1 | 9.9 ± 1.4b |
| Plt in 109/L | N/A | 324 ± 76 | 368 ± 109 | 369 ± 96 | 384 ± 152 | 375 ± 113 | 370 ± 96 | 366 ± 117 | 548 ± 227b |
| ESR in mm/h | N/A | 15 ± 16 | 23 ± 17 | 19 ± 15 | 23 ± 18 | 31 ± 24 | 19 ± 17 | 21 ± 17 | 89 ± 40b |
| CRP in mg/dl | N/A | 1.6 ± 2.2 | 0.9 ± 1.3 | 1.2 ± 1.4 | 1.8 ± 2.8 | 2.0 ± 2.0 | 1.0 ± 0.9 | 1.5 ± 2.1 | 16.9 ± 14.0b |
aAge at sampling. bP < 0.05 (one-way ANOVA and all multiple pairwise comparisons (Tukey)). Numbers represent mean ± standard deviation, unless otherwise indicated. WBC, white blood cell count; Hgb, hemoglobin; ESR, erythrocyte sedimentation rate; CRP, C-reactive protein.