Fig. 1
From: The utility of biomarkers in diagnosis of aspirin exacerbated respiratory disease
Asthma biomarkers in AERD, ATA and control subjects. Evaluation of urinary BrTyr, urinary LTE4, and blood eosinophils in patients with Aspirin-Exacerbated Respiratory Disease (AERD) (n = 240), patients with Aspirin-Tolerant Asthma (ATA) (n = 222), and control subjects (n = 68). All markers were significantly different between the three groups (ANOVA, p < 0.05). Urinary BrTyr was the only biomarker not significantly different between ATA and AERD (p > 0.05)