Determinants of fractional exhaled nitric oxide in healthy men and women from the European Community Respiratory Health Survey <scp>III</scp>

Abstract

Fractional exhaled nitric oxide levels were higher in men than women. Similar effects of current smoking, height, and IgE sensitization were found in both sexes. F_E NO started increasing at lower age in women than in men, suggesting that interpretation of F_E NO levels in adults aged over 50 years should take into account age and sex.