Subjects in a Population Study with High Levels of FENO Have Associated Eosinophil Airway Inflammation

Figure 1

Correlation of FENO levels with percentage of eosinophils in BAL (𝜌=0.6, 𝑃<.002). Black dots denote subjects with high FENO levels (𝜌=0.78, 𝑃<.02). White dots denote subjects with normal FENO levels.