Patients with increased BEC (≥ 250 cells/μL), showed increased sleep disturbance compared to patients with normal BEC (p = 0.04), whereas patients with increased serum total IgE or with comorbid asthma did not show differences in the level of sleep disturbance compared to patients with serum total IgE < 100 IU/mL or without comorbid asthma (p = 0.34 and p = 0.59; Figure 5). Here, IGHE is linked to asthma.