Table 1.
Characteristics of patients
| Characteristics | Values |
|---|---|
| Age (years), mean ± SD (min–max) | 55.3±14.5 (15–88) |
| Male/female | 190 (80.9%)/45 (19.1%) |
| BMI; mean ± SD (min–max) | 27.3±5.2 (15.1–44.3) |
| Smoking status | |
| Nonsmoker, n (%) | 46 (19.6) |
| Current smoker, n (%) | 109 (46.4) |
| Ex-smoker, n (%) | 80 (34) |
| Baseline spirometry | |
| FVC (mL) | |
| Mean ± SD (min–max) | 2,825±1,108 (710–6,870) |
| %Predicted ± SD (min–max) | 74.3±22.4 (24–155) |
| FEV1 (mL) | |
| Mean ± SD (min–max) | 1,789±774 (480–4,810) |
| %Pred ± SD (min–max) | 58.1±20.0 (20–130) |
| FEV1/FVC | |
| %Pred ± SD (min–max) | 62.5±6.8 (39–70) |
Abbreviations: BMI, body mass index; FVC, forced vital capacity; FEV1, forced expiratory volume in 1 second; min, minimum; max, maximum; Pred, Predicted.