Haplotype analysis identified the GSTP1 GC combination as a risk haplotype (OR: 2.12, p = 0.025) and the CAT ATT haplotype as protective (OR: 0.45, p = 0.006), and MDR interaction modeling showed that rs1695 and rs7943316 together formed the strongest predictive model for asthma susceptibility [7]. Here, GSTP1 is linked to asthma.