Characteristics | Patients without Ulceration, n = 68 | Patients with Ulceration, n = 15 | p |
---|---|---|---|
Age, yrs | 56.3 ± 15.2 | 50.9 ± 13.3 | 0.21 |
CADM | 31 | 80 | 0.001** |
Heliotrope rash | 43 | 67 | 0.09 |
Fever | 53 | 73 | 0.15 |
Arthralgia/arthritis | 49 | 73 | 0.08 |
ILD | 66 | 100 | 0.005** |
AIP/SIP | 29 | 27 | 0.4 |
Malignancy | 29 | 0 | 0.016* |
CK, IU/l | 2424 ± 4189 | 156 ± 162 | 0.04* |
LDH, IU/l | 564 ± 316 | 462 ± 252 | 0.25 |
AST, IU/l | 134 ± 148 | 99 ± 69 | 0.38 |
WBC, × 103/mm3 | 7.8 ± 3.8 | 5.2 ± 1.2 | 0.009** |
ESR, mm/h | 41 ± 28, n = 56† | 48 ± 25, n = 12† | 0.4 |
Serum ferritin, ng/ml | 650 ± 1056, n = 47† | 469 ± 419, n = 9† | 0.95 |
Anti-Jo1 antibody | 12 | 0 | 0.19 |
ANA, ≥ 160× | 43 | 7 | 0.006** |
Death from AIP/SIP within 1 yr | 9 | 7 | 0.81 |
↵* p < 0.05.
↵** p < 0.01.
↵† No. patients in whom ESR or serum ferritin was tested. CADM: clinically amyopathic dermatomyositis; ILD: interstitial lung disease; AIP: acute interstitial pneumonia; SIP: subacute interstitial pneumonia; CK: creatine kinase; LDH: lactate dehydrogenase; AST: aspartate aminotransferase; WBC: white blood cell count; ESR: erythrocyte sedimentation rate; ANA: antinuclear antibody.