We performed logistic regression analysis and the final model confirmed the significant risk factors for the development of dysphagia in DM; internal malignancy (odds ratio 22.2), anti- TIF-1γ Ab (odds ratio 11.8), and MMT score of sternomastoid muscle (odds ratio 0.46 for each score, Table 3). The gene discussed is TRIM33; the disease is dermatomyositis.