Additionally, HLA-DRB1*11 predisposes individuals to oligoarticular (OR 2.9, 95% CI: 1.9–4.3) and polyarticular JIA (OR 1.8, 95% CI: 1.2–2.5), underscoring the diagnostic utility of these HLA-DRB1 markers in distinguishing JIA subtypes[18]. The gene discussed is HLA-DRB1; the disease is juvenile idiopathic arthritis.