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Adults with juvenile idiopathic arthritis (JIA) carry a heavier health burden than the general population — and it goes beyond joint pain. A large Norwegian registry study found they're significantly more likely to develop hypertension, chronic kidney disease, and autoimmune conditions, and face a 33% higher risk of dying from any cause. Experts say routine comorbidity screening should become standard care for this group.
Juvenile idiopathic arthritis (JIA) is often thought of as a childhood condition, but a new study makes clear that its consequences follow patients well into adulthood. Researchers analyzing a Norwegian registry of nearly 3,000 adults with JIA found that they faced a significantly higher burden of comorbidities — including hypertension, chronic kidney disease, and multiple autoimmune disorders — compared to matched individuals from the general population.
Perhaps most strikingly, adults with JIA had a 33% higher risk of all-cause mortality over up to 15 years of follow-up. Notably, comorbidity rates and mortality risk didn't differ significantly between those who had recently received disease-modifying antirheumatic drugs (DMARDs) and those who hadn't, suggesting the elevated risk isn't easily explained by treatment status alone.
By the Numbers:
Why it matters: These findings highlight a critical gap in care — adults with JIA are often transitioned out of pediatric care without adequate long-term monitoring. Routine comorbidity screening should be built into standard follow-up for this patient group to catch and manage these risks early.
