Table 1.
Baseline characteristics
| All patients (N = 102) (mean ± SD) |
|
|---|---|
| Age, year | 50 ± 14 |
| Sex ratio, Female:Male (%) | 53:49 |
| Race (%) | |
| White | 90 |
| Asian | 6 |
| Black African | 2 |
| FVC% predicted | 91 ± 21.5 |
| FEV1% predicted | 84 ± 24.1 |
| 6MWD (m) | 434.8 ± 163 |
| D-12 Total | 16.8 ± 10.8 |
| Physical | 10.5 ± 6.1 |
| Affective | 6.3 ± 5.1 |
| MRC dyspnea grade | 2.6 ± 1.4 |
| SGRQ | |
| Symptoms | 67. 9 ±19.5 |
| Activity | 53.5 ±29.1 |
| Impacts | 43.8 ± 26.1 |
| Total | 51.1 ±23.4 |
| HADS | |
| Anxiety | 8.1 ± 5.1 |
| Depression | 6.2 ± 4.4 |
Definition of abbreviations: D-12 = Dyspnea-12; FEV1 = forced expired volume in one minute; FVC = forced vital capacity; 6MWD = six-minute walk distance; MRC = Medical Research Council; SGRQ = St George’s Respiratory Questionnaire; HAD = .Hospital anxiety and depression scale.
FEV1 and FVC expressed as percentage of predicted value