- Maternal SNPs : ABCB1 SNPs negatively associated with MV (OR = 0.18, p = 0.05) IPO13 SNPs positively associated with surfactant use (rs2428953 OR = 13.8 p = 0.01, rs2486014 OR = 23.8 p = 0.02)- Neonatal SNPs:  IPO13 SNPs negatively associated with BPD (OR = 0.01, p = 0.04). Here, ABCB1 is linked to bronchopulmonary dysplasia.