Correlation of disease course with autoantibody in a subset of juvenile myositis patients with 2+ years of followup.
| Feature | Mi-2, n = 4 | PM-Scl, n = 2 | U1RNP, n = 6 | Ku, n = 1 | MJ, n = 10 | p155/140, n = 13 |
|---|---|---|---|---|---|---|
| Course | ||||||
| Monocyclic | 3 | 1 | 4 | — | 5 | 10 |
| Polycyclic | 1 | 1 | 2 | 1 | 4 | 2 |
| Chronic-continuous | — | — | — | — | 1 | 1 |
| Functional status | ||||||
| I–II | 4 | 2 | 6 | 1 | 7 | 13 |
| III–IV | — | — | — | — | 3 | — |
| Disease activity | ||||||
| Active | 1 | 1 | 1 | 1 | 4 | 8 |
| Inactive | 3 | 1 | 5 | — | 6 | 5 |