Table 1. Patient characteristics.
| Variables | Data |
|---|---|
| N | 379 |
| Agea | 47.4 (14.0) |
| Male/female (N=379) | 163/216 |
| Smokingc (N=344) | |
| Never | 217 (63.1) |
| Current | 57 (16.6) |
| Ex | 70 (20.4) |
| Pack years (ex/current smokers)b | 19.50 (7.50, 31.50) |
| BMIb | 23.44 (21.12, 25.87) |
| Atopyc | 78/127 (61.4) |
| Pre β2 agonist spirometrya (N=375) | |
| FEV1% predicted | 71.48 (23.30) |
| FVC % predicted | 88.35 (20.22) |
| FEV1/FVC | 66.45 (14.38) |
| Post β2 agonist spirometrya (N=340) | |
| FEV1% predicted | 78.60 (23.47) |
| FVC % predicted | 93.92 (19.66) |
| FEV1/FVC | 68.89 (14.25) |
| Sputum inflammatory phenotypec (N=236) | |
| Neutrophilic | 27 (11.4) |
| Eosinophilic | 63 (26.7) |
| Paucigranulocytic | 143 (60.6) |
| Mixed | 3 (1.3) |
BMI, body mass index; Data given as amean (SD), bmedian (Q1, Q2), cNo. (%).