Healthy (n = 7) | COPD (n = 10) | |||
---|---|---|---|---|
% predicted | % predicted | |||
Age (yrs) | 30 ± 8 | 67 ± 7‡ | ||
Gender | 2 M/5 F | 7 M/3 F | ||
Height (cm) | 168 ± 9 | 171 ± 7 | ||
Weight (kg) | 63 ± 5 | 73 ± 10* | ||
Pack years | 0 | 44 ± 19‡ | ||
FEV1 (L) | 3.71 ± 0.96 | 107 ± 12 | 1.80 ± 0.45‡ | 66 ± 16‡ |
FEV1/FVC | 0.79 ± 0.04 | 95 ± 4 | 0.49 ± 0.08‡ | 65 ± 10‡ |
FVC (L) | 4.44 ± 1.09 | 110 ± 10 | 2.85 ± 0.63† | 81 ± 18 |
VC (L) | 4.69 ± 1.21 | 115 ± 14 | 3.69 ± 0.77 | 102 ± 22* |
TLC (L) | 6.13 ± 1.31 | 109 ± 11 | 6.9 ± 0.9 | 112 ± 12 |
RV (L) | 1.40 ± 0.20 | 3.24 ± 0.58‡ | ||
RV/TLC | 0.24 ± 0.04 | 0.47 ± 0.08‡ | ||
PEF (L/s) | 8.15 ± 1.66 | 105 ± 7 | 5.51 ± 1.70† | 75 ± 20† |
MEF50 (L/s) | 4.02 ± 1.14 | 85 ± 21 | 0.78 ± 0.33‡ | 20 ± 8‡ |
MEF25 (L/s) | 1.56 ± 0.54 | 0.17 ± 0.06‡ | ||
DLCO(SB)a | 8.46 ± 1.99 | 92 ± 13 | 5.14 ±0.64‡ | 62 ± 12† |
DLCO/VA a | 1.65 ± 0.06 | 92 ± 3 | 0.96 ± 0.19‡ | 70 ± 11‡ |
MV (L/min) | 8.4 ± 1.5 | 10.6 ± 2.9 | ||
f (breaths/min) | 10.7 ± 3.6 | 13.1 ± 3.4 | ||
VT (L) | 0.86 ± 0.26 | 0.86 ± 0.28 |