IGHE and asthma: Because of the significantly weaker correlation strengths in the subgroups with less allergic patients, additional “severe” (IgE ≥ class III (3.5 kU/L), CSMS ≥ 50% of the mean, asthma) and “mild” (IgE < class III (3.5 kU/L), CSMS < 50% of the mean, no asthma) groups were created.