Figure 1.

Increased nasal symptom scores in subjects with atopy after nasal allergen challenge (NAC). Nasal symptoms were assessed at baseline (30 min before NAC) and at the time points shown after NAC (0 h) in subjects with atopy (n = 9) and healthy controls (n = 8) using a nasal symptom questionnaire. Subjects scored the severity of their nasal running, blockage, itching, and sneezing from 0 to 3; the total nasal symptom score represents the cumulative score. Statistical analysis was performed using a Kruskal-Wallis nonparametric analysis of variance and Mann-Whitney U tests; data are displayed as median (25th, 75th percentiles). *P < 0.05; **P < 0.01; ***P < 0.001.