ArticleInternal medicine (Tokyo, Japan)2025
Differences in Organ Damage Based on Age at Onset in Idiopathic Inflammatory Myopathies: A Retrospective Multicenter MYKO Study.
Article in Internal medicine (Tokyo, Japan), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Pathogenesis and Treatment of Interstitial Lung Disease Accompanied by Anti-melanoma Differentiation-associated Gene 5-positive Idiopathic Inflammatory Myopathies.Internal medicine (Tokyo, Japan) · 2026Review
- A five-factor risk-stratification model for cancer-associated myositis in idiopathic inflammatory myopathies and stage-specific survival analysis: a multicentre Japanese MYKO cohort study.Frontiers in immunology · 2026Article
- Rehospitalization to evaluate outcomes during clinical courses in patients with elderly-onset idiopathic inflammatory myositis: a retrospective single-center study.Clinical rheumatology · 2025Article
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20 authors.
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Abstract
Objective To analyze the influence of age of the onset on myositis organ damage and to identify the factors influencing myositis organ damage, as clinical manifestations of myopathies differ by the age of onset and the background of patients. Methods Factors influencing organ damage [the Systemic Lupus International Collaborating Clinics/American College of Rheumatology (SLICC/ACR) Damage Index (SDI)] were identified using the Japanese multicenter myositis registry (MYKO, n=220). Factors influencing organ damage were identified using a multivariate analysis. SDI was compared among juvenile-onset (<20 years old), adolescent-onset (20-64 years), and elderly-onset (>64 years) groups. Results There was a correlation between the age at onset and the SDI score (Spearman's rank correlation coefficient ρ=0.28). Elderly patients exhibited more widespread organ damage, including neuropsychiatric, renal, pulmonary, cardiovascular, peripheral vascular, gastrointestinal, skin, and diabetes, whereas juvenile-onset patients exhibited musculoskeletal damage. Adolescent-onset patients had the lowest incidence of ocular and malignant damage. A regression analysis revealed that an older onset age (coefficient, β=0.03), longer disease duration (β=0.05), and total dose of glucocorticoid (β=3.35×10
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