Table 2

Demographics for subgroup comparisons

Sputum eosinophilsSputum neutrophilsAsthma Control Questionnaire
≥2% (n=8)<2% (n=10)≥40% (n=10)<40% (n=8)<1 (n=17)≥1 (n=18)
Age, mean (SD)46.8 (15.1)47.5 (10.7)52.7 (10.8)40.3 (11.3)*42.9 (16.0)49.1 (12.5)
Gender (M/F)5/35/56/44/48/99/9
Predicted FEV1 (%), mean (SD)73.6 (21.3)102.0 (16.7)*85.1 (27.3)94.7 (17.6)104.1 (17.3)79.6 (19.6)*
Predicted FVC (%), mean (SD)98.9 (8.0)113.2 (13.7)*106.5 (14.5)107.3 (12.9)111.9 (14.5)100.5 (12.2)*
FEV1/FVC62.4 (13.4)74.5 (6.7)*65.8 (13.0)73.2 (8.8)77.7 (6.5)65.1 (11.4)*
Inhaled steroids (Y/N)8/07/39/16/27/1018/0*
Exhaled nitric oxide, mean (SD)42.2 (29.0)27.1 (24.3)24.9 (19.8)45.0 (31.4)28.5 (21.7)29.8 (24.0)
  • * p≤0.05 versus comparator group.

  • FEV1, forced expiratory volume in one second; FVC, forced vital capacity.