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Clinical data of IIM patients and controls.
| Characteristic | Patients | Controls |
|---|---|---|
| Number of subjects (DM/PM) | 1017(654/363) | 1280 |
| Female percentage (%) | 74.3 | 87.1 |
| Average age (mean ± SD) | 46.1 ± 15.2 | 41.8 ± 12.7 |
| DM with ILD, No./total (%) | 390/654(59.6) | — |
| PM with ILD, No./total (%) | 195/363(53.7) | — |
PM: polymyositis; DM: dermatomyositis; IIM: idiopathic inflammatory myopathies; ILD: interstitial lung disease.
