No significant associations between hepcidin levels at admission and stage 2–3 AKI were observed in the sepsis group, Odds Ratio (OR) 1.011 (CI 0.995–1.027, p = 0.189), or in the non-sepsis group, OR 1.002 (CI 0.975–1.029, p = 0.910). The gene discussed is HAMP; the disease is acute kidney injury.