Table 1.
Clinical and functional characteristics of the studied patients
| COPD patients (n=29) | |
|---|---|
| Age (years) | 67±9 |
| Sex (female/male) | 6/23 |
| Current smoker, n (%) | 13 (45) |
| Smoking consumption (pack/year) | 51±34 |
| FEV1 (% predicted) | 68±17 |
| VC (% predicted) | 98±14 |
| FEV1/VC (%) | 54±10 |
| RV (% predicted) | 155±39 |
| TLC (% predicted) | 118±17 |
| RV/TLC (%) | 51±7 |
| IC (L) | 2.6±0.4 |
| Change in FEV1 (%) | 8.6±8.5 |
| BMI (kg/m2) | 27±4 |
| Exacerbations previous year | 0.7±0.8 |
| Symptom score | 8.1±4.2 |
| Cough | 21/29 |
| Wheezing | 8/29 |
| Dyspnea | 15/29 |
| Sputum | 24/29 |
| Nocturnal symptoms | 10/29 |
Note: Values are expressed as mean ± SD.
Abbreviations: FEV1, forced respiratory volume in 1 second; VC, vital capacity; RV, residual volume; TLC, total lung capacity; IC, inspiratory capacity; BMI, body mass index; SD, standard deviation.