Baseline characteristics of 143 patients with chronic obstructive pulmonary disease
| Characteristic | |
| Sex M:F | 139:4 |
| Age yrs | 68.6±7.0 (48–89) |
| Smokers former:current | 99:44 |
| BMI kg·m−2 | 20.6±2.8 (13.5–28.0) |
| Prebronchodilator FEV1 L | 1.16±0.52 (0.21–2.95) |
| Prebronchodilator FEV1 % pred | 43.7±18.1 (7.9–89.8) |
| Prebronchodilator FVC % pred | 72.9±18.5 (29.6–125.0) |
| Postbronchodilator FEV1 L | 1.39±0.55 (0.34–3.20) |
| Postbronchodilator FEV1 % pred | 52.8±19.6 (13.6–98.3) |
| Postbronchodilator FVC % pred | 92.7±22.6 (31.4–143.1) |
| Vital capacity L | 2.99±0.74 (1.18–5.69) |
| Total lung capacity L | 5.84±1.04 (2.86–8.87) |
| Total lung capacity % pred | 107.8±16.8 (53.8–154.6) |
| KCO mmol·min−1·kPa−1·L−1 | 1.28±0.52 (0.54–3.17) |
| KCO % pred | 84.8±26.0 (37.0–179.7) |
| CRQ | |
| Dyspnoea (5–35) | 25.1±6.3 (11–35) |
| Fatigue (4–28) | 19.4±4.7 (6–28) |
| Emotional function (7–49) | 38.0±7.1 (17–49) |
| Mastery (4–28) | 21.0±4.2 (8–28) |
| Total (20–140) | 103.6±19.2 (52–140) |
Data are presented as mean±sd (range) unless otherwise stated. The numbers in parentheses indicate the theoretical score range
M: male
F: female
BMI: body mass index
FEV1: forced expiratory volume in one second
% pred: % predicted
FVC: forced vital capacity
KCO: carbon monoxide transfer coefficient
CRQ: Chronic Respiratory Disease Questionnaire