However, rural participants had higher median total IgE levels (p < .001), and higher prevalence of IgE sensitization to crude German cockroach (ImmunoCAP® concentration ≥0.35 kU/L) [p = .001], ELISA‐detectable cockroach‐specific IgE (≥312.5 ng/ml) [p = .001], and infection with Sm (p < .001) and at least one nematode (p < .001). Here, IGHE is linked to infection.