Comparison of clinical characteristics between acute/subacute and chronic interstitial lung disease associated with amyopathic dermatomyositis (ILD-ADM)
| Acute/subacute ILD-ADM | Chronic ILD-ADM | |
| Subjects n | 9 | 5 |
| Age yrs | 55.1±10.4 | 53.8±8.2 |
| Sex M/F | 0/9 | 1/4 |
| Observation period months | 18.8±30.0 | 43.3±40.4 |
| Duration of respiratory symptoms months | 1.2±0.7* | 9.0±2.6 |
| Time of ILD diagnosis | ||
| Before ADM diagnosis | 0 | 0 |
| Concomitant with ADM diagnosis | 89 | 40 |
| After ADM diagnosis | 11 | 60 |
| Malignancy | 0 | 5 |
| Dyspnoea on effort | 89 | 20 |
| Cough | 78 | 60 |
| Fever | 78* | 0 |
| Arthralgia | 56 | 20 |
| Raynaud's phenomenon | 0 | 20 |
| Fine crackles | 89 | 100 |
Data are presented as mean±sd, n or %. M: male; F: female.*: p<0.05.