Elderly COPD | Elderly controls | p-value | |
Subjects n | 26 | 14 | |
Age yrs | 76.0±4.5 | 79.0±5.6 | 0.07 |
BMI kg·m−2 | 25.6±4.0 | 24.4±2.2 | 0.3 |
Height cm | 167±0.77 | 165±0.07 | 0.36 |
FVC L | 2.23±0.76 | 2.61±0.68 | 0.13 |
FVC % pred | 67.6±17 | 92.6±11 | 0.001# |
FEV1 L | 1.23±0.59 | 1.98±0.52 | 0.003# |
FEV1 % pred | 48.9±20 | 90.9±11 | 0.001# |
PIF L·min−1 | 169±66 | 179±65 | 0.68 |
PEF L·min−1 | 199±99 | 270±89 | 0.03# |
MIP cmH2O | 41.1±22 | 42.3±26 | 0.87 |
MEP cmH2O | 77.8±37 | 67.7±41 | 0.43 |
Data are presented as mean±sd, unless otherwise stated. BMI: body mass index; FVC: forced vital capacity; % pred: % predicted; FEV1: forced expiratory volume in one second; PIF: peak inspiratory flow; PEF: peak expiratory flow; MIP: maximum inspiratory pressure; MEP: maximum expiratory pressure. #: statistically significant differences.