Table S1 - Bronchial Responsiveness Is Related to Increased Exhaled NO (FENO) in Non-Smokers and Decreased FENO in Smokers

The relation (beta coefficient from multiple linear regression models) between bronchial responsiveness (expressed as methacholine doubling dose) and FENO in smoking subjects in Uppsala and Gothenburg centers # after dividing them for current cigarette consumption with different arbitrary cut-off levels. All the coefficients and p-values are adjusted for gender, FEV1(%pred), age, height, weight, atopy, current asthma. (DOCX)