Subjects n | ICS use n | Sex M/F | Age yrs | Smoking history pack-yrs | FEV1 % pred | |
COPD smokers | 23 | 6 | 15/8 | 60±6 | 42±10 | 64±11 |
COPD ex-smokers | 27 | 18 | 17/10 | 65±7 | 49±30 | 58±12 |
Healthy smokers | 21 | NA | 12/9 | 58±7 | 34±16 | 94±9 |
Healthy nonsmokers | 19 | NA | 9/10 | 60±11 | NA | 113±11 |
Data expressed as mean ±sd, unless otherwise stated. ICS: inhaled corticosteroid; M: male; F: female; FEV1: forced expiratory volume in one second; % pred: % predicted; COPD: chronic obstructive pulmonary disease; NA: not applicable.