We read with interest the letter titled ‘Performance of the 2017 European League Against Rheumatism/American College of Rheumatology classification criteria for adult and juvenile idiopathic inflammatory myopathies in clinical practice’ by Hocevar et al published in the Annals of the Rheumatic Diseases .1 In the letter the authors report the sensitivity and specificity of the recently published ‘ 2017 European League Against Rheumatism/American College of Rheumatology classification criteria for adult and juvenile idiopathic inflammatory myopathies and their major subgroups ’2 observed in a retrospective cohort of 95 patients with idiopathic inflammatory myopathies (IIM) collected between 2010 and 2017 in a Slovenian rheumatology centre. As comparators, they used 72 subjects who had had a work-up for …

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回应：Hočevaret al 的“2017 年欧洲抗风湿病联盟/美国风湿病学会成人和青少年特发性炎症性肌病临床实践分类标准的表现”

我们饶有兴趣地阅读了 Hocevar 等人发表在《风湿病年鉴》上的题为“2017 年欧洲抗风湿病联盟/美国风湿病学会成人和青少年特发性炎症性肌病临床实践分类标准的表现”的信函。作者报告了最近发布的“2017 年欧洲抗风湿病联盟/美国风湿病学会成人和青少年特发性炎症性肌病及其主要亚组分类标准 2”的敏感性和特异性，该标准在 95 名特发性炎症性肌病患者的回顾性队列中观察到(IIM) 于 2010 年至 2017 年在斯洛文尼亚风湿病中心收集。作为比较者，他们使用了 72 名经过...