Serum EPX levels were higher in asthmatics not receiving anti‐inflammatory therapy (median 59.9, IQR 33.6–99.2) compared to controls (median 26.2, IQR 19.2–40.1) (P < 0.001)Elevated serum EPX was significantly associated with asthma (OR = 2.61, 95%CI 1.19–5.74 This evidence concerns the gene EPX and asthma.