What Is Polymyositis?
Reviewed: Dr. Mera
2. Risk Factors
Certain demographics can make somebody more likely to have the condition than others. For example, it is rare in children, affects women more than men, and usually affects people between 30 and 60 years old.
Another risk factor is the presence of other autoimmune disorders, particularly lupus, scleroderma, Sjögren syndrome, and rheumatoid arthritis. There is also a link with viral infections, malignancies, and connective-tissue diseases.
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