Median (IQR) RAGE levels in mild, moderate and severe BPD were 1,599 (1,121–3,221) pg/mL, 1,728 (1,159–2,414) pg/mL, and 1,829 (627.3–2,533) pg/mL, respectively. The gene discussed is AGER; the disease is bronchopulmonary dysplasia.