In nonallergic asthma, the smallest significance levels appeared for 5 SNPs (the GCLM −588C>T, GSR T>C, CAT −21A>T, CYBA −930A>G, and EPHX1 Y113H) in men and for 2 SNPs (the EPHX1 Y113H and GPX2 G>A) in women (Figure 2). This evidence concerns the gene EPHX1 and asthma.