Does being male or older increase risk of lung disease in dermatomyositis?

In dermatomyositis, lung problems usually mean interstitial lung disease (ILD), a condition where inflammation and scarring build up in the lung tissue. A fast-worsening form called rapidly progressive ILD (RP-ILD) is a leading cause of death in some dermatomyositis patients, especially those with anti-MDA5 antibodies ⁴. The short answer to your question is yes: both male sex and older age are associated with a higher risk of lung disease in dermatomyositis, though the strength of that link depends on the subtype and the specific antibodies involved ⁴⁷.

What the research says

A 2026 meta-analysis of 15 high-quality studies looked specifically at anti-MDA5-positive dermatomyositis patients with ILD and found that male sex roughly doubled the odds of developing rapidly progressive ILD (odds ratio 1.99, 95% CI 1.27 to 3.12), and advanced age raised the odds even more (odds ratio 2.54, 95% CI 1.40 to 4.60) ⁴. That means in this subtype, being male or older is not just a minor factor; it is a measurable risk multiplier for the most dangerous form of lung involvement ⁴.

A separate 2026 study of 450 patients with idiopathic inflammatory myopathies (the broader family of muscle diseases that includes dermatomyositis) also identified older age as a factor associated with ILD, along with smoking status and African American heritage ⁷. That same study found that autoantibodies, particularly anti-synthetase and anti-MDA5 antibodies, were the strongest predictors of lung disease, raising the odds of ILD by up to 20-fold ⁷. So age and sex matter, but antibody status matters more.

It is worth separating lung disease risk from cancer risk, because both come up in dermatomyositis. A 2021 meta-analysis of 69 studies found that in idiopathic inflammatory myopathies, older age and male sex were also associated with higher cancer risk, not just lung disease ⁶. A 2020 review reached the same conclusion, listing older age at disease onset and male gender as clinical risk factors for cancer in myositis patients ⁸. This overlap matters because cancer screening and lung monitoring are both part of dermatomyositis care, and the same demographic factors can raise risk on both fronts ⁶⁸.

One important nuance: the link between male sex, older age, and lung disease is best documented in anti-MDA5-positive dermatomyositis and in idiopathic inflammatory myopathies broadly ⁴⁷. Whether the same strength of association holds for every dermatomyositis subtype is less clear from these sources. The evidence is consistent in direction (male and older equals higher risk) but the exact size of the effect varies by study population and antibody profile ⁴⁷.

What to ask your doctor

• Does my antibody profile (including anti-MDA5 and anti-synthetase antibodies) change my risk of lung disease, and does my age or sex add to that risk?
• Should I have baseline lung function tests or imaging, and how often should they be repeated?
• What symptoms should prompt me to call you right away (for example, new shortness of breath or a dry cough)?
• Given my age and sex, what cancer screening do you recommend alongside lung monitoring?
• Are there any treatments that could help prevent or slow lung involvement in my case?