Laboratory findings at disease onset in 2 patient groups.
| Measure | DM First, n = 49 | JIA First, n = 33 | p |
|---|---|---|---|
| ESR, median (IQR) | 26 (12, 45) | 27 (12, 45) | 0.62 |
| CRP, median (IQR) | 7 (3, 26) | 10 (5, 16) | 0.90 |
| ANA+, n (%) | 11 (22) | 7 (21) | 0.97 |
| RF+, n (%) | 11 (22) | 1 (3) | 0.023 |
DM: diabetes mellitus; JIA: juvenile idiopathic arthritis; ESR: erythrocyte sedimentation rate; CRP: C-reactive protein; IQR: interquartile range; ANA: antinuclear antibodies; RF: rheumatoid factor.