| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
---|---|---|---|---|---|---|---|---|---|
Age at myositis diagnosis | 48 | 67 | 18 | 46 | 55 | 21 | 53 | 51 | 53 |
Sex | F | F | M | M | F | F | F | M | M |
Diagnosis | DM | DM | DM | DM | DM | DM | DM | DM | DM |
Interstitial lung disease | + | + | - | + | + | - | - | + | + |
   Rapidly progressive type | No | Yes |  | No | Yes |  |  | Yes | Yes |
Muscle weakness | + | + | + | + | + | + | + | + | + |
Creatine kinase†| 31 | 20 | 486 | 212 | 930 | 19487 | 775 | 1273 | 140 |
Lactate dehydrogenase†| 280 | 407 | 765 | 493 | 437 | 6916 | 748 | 295 | 249 |
Abnormal electromyography | + | + | + | + | + | + | + | + | + |
Biopsy proven myositis | + | + | + | + | + | + | + | + | + |