Demographic and clinical characteristics of the 357 study patients
| Characteristic | |
|---|---|
| Demographics (day 1) | |
| Mean age, years (SD) | 63 (9) |
| Male sex, % | 46 |
| History taking (day 1) | |
| Current smoker, % | 28 |
| Complaints of wheezing, % | 50 |
| Mean duration of cough, days (median) | 102 (40) |
| Physical examination (day 1) | |
| Pulmonary wheezing, % | 14 |
| Diminished breath sounds, % | 12 |
| Clinical view physician (day 1) | |
| Estimated probability of COPD, mean (SD) | 0. 41 (0.27) |
| Lung function tests (day 90) | |
| Post-dilator FEV1, % predicted mean (SD) | 100 (19) |
| Post-dilator FEV1/FVC, mean (SD) | 73 (10) |
| Panel diagnosis | |
| COPD present, % | 29 |
FEV1 = forced expiratory volume in 1 second. FVC = forced vital capacity. SD = standard deviation.