Characteristics | Moderate‐to‐severe FEV1 <50% pred | Mild FEV1 ≥50% pred |
| Placebo | FP | Placebo | FP |
Subjects n | 195 | 196 | 179 | 180 |
Age yrs | 64±7 | 64±6 | 63±8 | 63±8 |
Male % | 81 | 86 | 66 | 63 |
Smoking history | | | | |
Pack-yrs | 48±36 | 47±30 | 39±31 | 42±30 |
Current smokers % | 38 | 32 | 41 | 41 |
Exsmokers % | 48 | 51 | 44 | 43 |
Intermittent % | 14 | 17 | 16 | 16 |
Atopy# % | 14 | 13 | 11 | 14 |
FEV1¶ L | 1.0±0.2 | 1.0±0.3 | 1.6±0.5 | 1.6±0.5 |
FEV1% pred | 39±8 | 39±8 | 62±10 | 62±10 |
% FEV1 reversibility+ | 4.1±3.4 | 4.2±3.4 | 4.8±3.4 | 4.6±3.6 |