Fig. 3

Difference in bronchial responsiveness (lower values show more responsiveness, a) and % difference of fraction of exhaled nitric oxide (FeNO) (b) between subjects sensitized to cat extract or both extract and components vs. subjects not sensitized to cat. Results are from a multiple linear regression model and adjusted for age, BMI, sex, smoking at baseline. Reference group are the subjects negative to both extract and any cat component. From Patelis et al. [60] reprinted with permission from the publisher