Other genes were related to BPD-associated outcomes such as retinopathy of prematurity (ROP, e.g., GBP3, FJX1, HIPK2) and hearing loss (e.g., GJB6, TMEM63B) and mitochondrial energy metabolism (e.g., TOMM7, SLC25A26, SLC25A33, PDK1, PKM, MDH1). The gene discussed is HIPK2; the disease is retinopathy of prematurity.