Anthropometric characteristics and pulmonary function tests in the controls and in the patients with chronic obstructive pulmonary disease(COPD)
| Characteristics | Controls | COPD |
| Subjects n | 13 | 19 |
| Male/female n | 11/2 | 8/11 |
| Age yrs | 64±3 | 58±1 |
| Weight kg | 71±3 | 58±2** |
| BMI kg·m-2 | 25±1 | 21±1** |
| FEV1 L | 2.67±0.21 | 0.71±0.05# |
| FEV1 % pred | 98±5 | 26±2# |
| FEV1/FVC % | 76±2 | 33±2# |
| TLC % pred | 95±6 | 126±5*** |
| RV % pred | 107±9 | 227±12¶ |
| DL,CO % pred | 83±5 | 29±2# |
| KCO % pred | 105±6 | 44±3# |
Data are presented as mean±sem, unless otherwise stated. BMI: body mass index; FEV1: forced expiratory volume in 1 s; % pred: % predicted; FVC: forced vital capacity; TLC: total lung capacity; RV: residual volume; DL,CO: diffusing capacity of the lung for carbon monoxide; KCO: DL,CO per unit of alveolar volume. #: p<0.0001; ¶: p<0.00005; **: p<0.01; ***: p<0.001.