International consensus outcome measures for patients with idiopathic inflammatory myopathies. Development and initial validation of myositis activity and damage indices in patients with adult onset disease.
Rheumatology (Oxford).,
Isenberg DA, Allen E, Farewell V, et al. dis 2004; 43:49-54
Country: UK
Language: English
Other references of interest
https://pubmed.ncbi.nlm.nih.gov/22588740/
This study summarizes the main outcome measures in adult and juvenile dermatomyositis, polymyositis, and inclusion body myositis.
https://pubmed.ncbi.nlm.nih.gov/21622773/
This study tests the interrater reliability, internal consistency and aspects of validity of the myositis damage index (MDI).