Figure 2. Sputum type 2 gene expression correlates with airway obstruction and the severity of indirect AHR.

(A and B) The T2GM did not correlate with FEV₁ % predicted (A) but did correlate with the FEV₁/FVC ratio (B). (C and D) The T2GM trended toward an association with severity of direct AHR (C) and was significant in association with indirect AHR (D). Associations were assessed by linear regression; shown are regression lines and 95% confidence intervals.