Feature | Anti-PM/Scl, n (%) | Anti-ARS, n (%) |
---|---|---|
Muscle involvement | 0/9 (0) | 5/12 (42)* |
Proximal muscle weakness | 0/9 (0) | 4/12 (33) |
Muscle pain | 0/9 (0) | 5/12 (42)* |
Elevated muscle enzyme level | 2/6 (33) | 5/9 (56) |
Elevated CK level | 2/6 (33) | 4/9 (44) |
Electromyographic signs | 1/4 (25) | 4/5 (80) |
Positive muscle biopsy | 0/1 (0) | 2/3 (67) |
Arthralgia | 6/9 (67) | 9/12 (75) |
Arthritis | 3/9 (33) | 2/12 (17) |
Raynaud phenomenon | 3/9 (33) | 4/12 (33) |
Gottron sign or papules | 2/9 (22) | 2/12 (17) |
Heliotrope erythema | 2/9 (22) | 0/12 (0) |
Mechanic’s hands | 2/9 (22) | 3/12 (25) |
Fever | 2/9 (22) | 4/12 (33) |
Sicca symptoms | 4/9 (44) | 1/12 (8) |
Sclerodactyly/puffy fingers | 3/9 (33) | 1/12 (8) |
Trunk scleroderma | 0/9 (0) | 0/12 (0) |
Capillaroscopy abnormalities | 4/5 (80) | 3/5 (60) |
CK: creatine kinase.
↵* p < 0.045, Fisher’s exact test.