ermatomyositis, polymyositis
Conditions
Interventions
Gold Standard:BlueDot Myositis12 IgG of D-tek s.a.
Index test:MDA5 antibody resistance measurement kit (chemiluminescence immunoassay)
Sponsors
Sun Yat-sen Memorial Hospital, Sun Yat-sen University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Samples of patients clinically diagnosed or suspected to be dermatomyositis or polymyositis (patients before, after, or at different periods during treatment); 2. Samples from patients with dermatomyositis, polymyositis combined with interstitial lung disease or dermatomyositis-specific rash (positive for anti-MDA5 antibodies by any of the available methods); 3. No relevant autoimmune disease samples; 4. Specific interference samples, such as RF and ANA positive; Hemolysis, jaundice, lipid blood samples; 5. Samples from other common rheumatic patients, such as rheumatoid arthritis, scleroderma, systemic lupus erythematosus, connective tissue disease, etc.
Exclusion criteria
Exclusion criteria: 1. The sample information is not complete so that the traceability of the sample cannot be guaranteed; 2. The sample size is not enough to guarantee the test; 3. Improperly stored samples; 4. Other samples that did not meet the inclusion criteria according to the researchers.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Coincidence rate;Kappa consistency test; | — |
Countries
China
Contacts
Public ContactDai Lie
Sun Yat-sen Memorial Hospital, Sun Yat-sen University
Outcome results
None listed