First external validation of sensitivity and specificity of the European League Against Rheumatism (EULAR)/American College of Rheumatology (ACR) classification criteria for idiopathic inflammatory myopathies with a Japanese cohort.
Masatoshi JinninAkiko OhtaShoichiro IshiharaHirofumi AmanoTatsuya AtsumiManabu FujimotoTakashi KandaYasushi KawaguchiAtsushi KawakamiAkio MimoriTsuneyo MimoriToshihide MimuraYoshinao MuroHajime SanoJun ShimizuTsutomu TakeuchiYoshiya TanakaKazuhiko YamamotoTakayuki SumidaHitoshi Kohsakanull nullPublished in: Annals of the rheumatic diseases (2019)
Our study externally validated high specificity of the new criteria for the first time, although with several limitations, including low percentage of child patients. The new criteria have higher sensitivity and/or specificity in classification of PM/DM than the previously reported criteria, demonstrating its usefulness for interethnic patients.