| Clinical features | MDA5+ | MDA-5− | P value | CADM | Classic DM | P value |
|---|---|---|---|---|---|---|
| (N=16) | (N=106) | (N=61) | (N=61) | |||
| ILD | 50% | 25.5% | 0.04 | 31% | 26% | 0.46 |
| RPILD | 44% | 1% | <0.001 | 8% | 5% | 0.55 |
| Raynaud's | 12.5% | 26.4% | 0.35 | 22.9% | 26.2% | 0.67 |
| Vasculitic rash | 18.7% | 1.8% | 0.01 | 3.2% | 4.9% | 1 |
| Abnormal capillary microscopy | 43.7% | 26.4% | 0.15 | 29.5% | 27.8% | 0.8 |
| Digital tip ulceration | 18.7% | 2.8% | 0.02 | 4.9% | 4.9% | 1 |
| Heliotrope rash | 18.7% | 29.2% | 0.55 | 36% | 19.6% | 0.04 |
| Dysphagia | 31.2% | 10.3% | 0.03 | 24.5% | 1.6% | <0.001 |